Can ACE 4710 send ICMP-dest-unreachable?
Dear Community!
We have previously configured an ACE context for implementing redundant corporate DNS service and now testing a transparent ACE context and HA configuration.One virtual-IP is configured for UDP/53, listening for DNS requests. Behind the VIP, there are 3 DNS server. The next step of our testing process, we have shut down all real-server instance behind the virtual-IP while inspecting DNS clients behaviour. Besides the DNS clients requesting the virtual-IP DNS service need ICMP-destination-unreachable packet to switchover the secondary DNS server.
Can ACE 4710 send ICMP-dest-unreachable?
Thanks in advance!
Regards,
Belabacsi
from Hungary
Unfortunately the 4710 does not send icmp unreachable when a vserver is down.
If you have backup dns service, you can configure it on ace itself.
Gilles.
Similar Messages
-
ACE 4710 send Connection:Close when should be Keep-Alive
After user request to front end http to 10.85.10.4 (default 80) after a port redirect and action list header rewrite
header rewrite request host header-value http://10[.]85[.]10[.]4 replace http://10.85.10.67:84/jde/E1Menu.maf%1
I see the request go out (wireshark) to the back-end javaserver but in the Connection it's close not keepalive:
GET /jde/E1Menu.maf HTTP/1.1
Connection: Close
Host:10.85.10.67:84
After the get from the ACE the jserver replies with the JDE login screen but the ACE ignores it?Try by enabling persistence rebalance in an http parameter-map.
Also your rewrite rule is wrong, you've been mistaken regarding the role of the Host field I guess. What you try to configure in your config is a URL rewrite but it's not supported by the ACE. -
ACE 4710 Can not confirm http cookie sticky connections
We are using a ACE 4710 with A3(2.6) software release.
I had to change our sticky load balancing method for HTTPS to cookie based.
However while connections appear to work if I look at the sho sticky database table I can not see or confirm sticky entries for the cookie based connections.
Here or config snippets to show the config
sticky http-cookie ghh-www scook-ghh
cookie insert browser-expire
serverfarm ghh-www-443
class-map match-all ghh-www-443_CLASS
2 match virtual-address 172.16.1.21 tcp eq https
class-map type http loadbalance match-any ghh-www-443_CLASSURL
2 match http url [.]*
policy-map type loadbalance first-match ghh-sticky-443_POLICY
class class-default
sticky-serverfarm scook-ghh
policy-map multi-match POLICY
class ghh-www-443_CLASS
loadbalance vip inservice
loadbalance policy ghh-sticky-443_POLICY
loadbalance vip icmp-reply active
appl-parameter http advanced-options CASE_PARAMAnother point: please check whether your servers are listening only for HTTPS traffic or also for HTTP traffic:
in the first case the ACE will have to: decrypt the traffic from the client, inspect the http header to take the loadbalance decision and then re-encrypt it and send it to the server
in the second case the ACE would have to: decrypt the traffic from the client, inspect the http header to take the loadbalance decision and send it out as it is unencrypted to the server
the second solution would have the benefit of being easier to configure and to require less resoucerces both on the ACE (only decryption to be performed) and on the servers (no need for SSL operations at all there) but it might be that your company or business sector have requirements for which this traffic should never flow unencrypted, in which case you would have to go for the first solution.
Here you have a config example for the first solution:
http://www.cisco.com/en/US/products/hw/modules/ps2706/products_configuration_example09186a00809c6f37.shtml
I would not expect you to have to pay extra for importing the cert and kepair into the ace, it would be just a copy, however as Alex said that may still depend on the license agreement with the CA.
Cheers,
Francesco -
ACE 4710 - can I dynamically sticky all traffic to 1 server based on URL?
Hello all, I'm new to the ACE 4710 and need to know some details about stickyness.
As background, we are a small company with a SaaS product and a pair of webservers.
I have set up the loadbalancing default L7 Load-balancing rule to sticky based on a Cookie based Stickey Group.
That seems to be working and session traffic is sticking to a server during the user's session.
Based on a request from our outsourced developer they would like the Loadbalancer to not only sticky the users sessions, but also sticky a url to a server.
I would like this to happen dynamically as each of our clients will have their own url based on our standard domain like clientname.fixeddomain.com and I don't want to have to come back to the loadbalancer every time we add a client.
As I said, I'm new to these devices but understand the concepts, and am in the position of having to make it work little to no tranining on this hardware and no budget at this point to pay someone else for configuration and setup.
I just need to know at this point if I can stick all requests for a specific URL to a server to avoid caching issue while those sessions are active and have new connections to other client urls balanced among the webservers.
Hopefully this request makes sense.
Thanks,
Mark Steeves.Daniel,
Thanks for the reply, but I cannot reach the URL you included. It gives me a 403.
Therfore without reading the article, I wanted to ask if the proper setup would be:
1. Default L7 load-balancing action: Primary action: Sticky: Stickey Group using
Type = HTTP Header: Header name = Host
2. Server Farm: Predictor: Least Connections or Round Robin to distribute the load between the 2 web servers.
Using this setting in testing, it looks like all the traffic keeps going to 1 server only. Granted there is not much traffic t the servers, but I have 2 different url being tested. url1.ourdomain.com & url2.ourdomain.com
If you have another link for the above document, please let me know.
Thanks,
Mark Steeves. -
Can't install ACE 4710 license
Hi,
I've tried to installed the license, but is not successful, below are the steps which i've taken to installed the license, with error messages. pls. assist.
CBJ6-LBDMZ2/Admin# copy tftp://10.2.18.66/ACE20090909090659371.lic disk0:
Enter the destination filename[]? [ACE20090909090659371.lic]
Trying to connect to tftp server......
TFTP get operation was successful
685 bytes copied
CBJ6-LBDMZ2/Admin# license install disk0:ACE20090909090659371.lic
Installing license... failed: Can't install this license with the current countCBJ6-LBDMZ2/Admin# show licen
ACE20090727112500202.lic:
SERVER this_host ANY
VENDOR cisco
INCREMENT ACE-AP-01-LIC cisco 1.0 permanent 1 \
VENDOR_STRING=1 HOSTID=ANY \
NOTICE="200907271125002021 \
1211J5CB363" SIGN=F2E3AFA69526
I think you have an HW appliance (code: ACE-4710-K9) with one a la carte license ( ACE-AP-01-LIC).
You bought a Bundle upgrade license, and this is not compatibly with you current license ( a la carte license).
To use the ACE-4710-BUN-UP2= ( 1G Bundle to 2G Bundle Upgrade License) you need to have a bundle product like the
ACE-4710-1F-K9.
Check this:
Table 1 ACE Licensing Bundles
License Model Description Upgrade Path
ACE-4710-0.5F-K9
This license bundle includes the following items:
•ACE 4710 appliance
•0.5-Gbps throughput license (ACE-AP-500M-LIC)
•100-Mbps compression license (ACE-AP-C-100-LIC)
•100 SSL transactions per second (TPS) license (ACE-AP-SSL-100-K9)
•5 virtual contexts license (ACE-AP-VIRT-5)
•Application acceleration license (50 connections) (ACE-AP-OPT-50-K9)
You have the option to upgrade to the 1-Gbps, 2-Gbps, or 4-Gbps bundle.
Start the upgrade with ACE-4710-BUN-UP1=.
ACE-4710-1F-K9
This license bundle includes the following items:
•ACE 4710 appliance
•1-Gbps throughput license (ACE-AP-01-LIC)
•500-Mbps compression license (ACE-AP-C-500-LIC)
•5000 SSL TPS license (ACE-AP-SSL-05K-K9)
•5 virtual contexts license (ACE-AP-VIRT-5)
•Application acceleration license (50 connections) (ACE-AP-OPT-50-K9)
You have the option to upgrade to the 2-Gbps or 4-Gbps bundle.
Start the upgrade with ACE-4710-BUN-UP2=.
ACE-4710-BAS-2PAK
This license bundle includes the following items:
•Two ACE 4710 appliances
•1-Gbps throughput license (ACE-AP-01-LIC)
ACE-4710-BAS-2PAK also includes the following default options:
•1000 SSL TPS
•100-Mbps compression
•5 virtual contexts
•Application acceleration (50 connections)
You have the option to upgrade to the 2-Gbps or 4-Gbps bundle.
Start the upgrade with ACE-4710-BUN-UP2=. Two upgrade licenses are required for upgrading two units of the ACE-4710-BAS-2PAK bundle.
ACE-4710-2F-K9
This license bundle includes the following items:
•ACE 4710 appliance
•2-Gbps throughput license (ACE-AP-02-LIC)
•1-Gbps compression license (ACE-AP-C-1000-LIC)
•7500 SSL TPS license (ACE-AP-SSL-07K-K9)
•5 virtual contexts license (ACE-AP-VIRT-5)
•Application acceleration license (50 connections) (ACE-AP-OPT-50-K9)
You have the option to upgrade to the 4-Gbps bundle.
Start the upgrade with ACE-4710-BUN-UP3=.
ACE-4710-4F-K9
This license bundle includes the following items:
•ACE 4710 appliance
•4-Gbps throughput license (ACE-AP-04-LIC)
•2-Gbps compression license (ACE-AP-C-2000-LIC)
•7500 SSL TPS license (ACE-AP-SSL-07K-K9)
•5 virtual contexts license (ACE-AP-VIRT-5)
•Application acceleration license (50 connections) (ACE-AP-OPT-50-K9)
This is the highest value bundle.
ACE-4710-BUN-UP1
0.5 to 1-Gbps throughput bundle upgrade license
See the Upgrade Path outlined above.
ACE-4710-BUN-UP2
1 to 2-Gbps throughput bundle upgrade license
See the Upgrade Path outlined above.
ACE-4710-BUN-UP3
2 to 4-Gbps throughput bundle upgrade license
See the Upgrade Path outlined above.
Table 2 ACE Licensing Options
Feature License Model Description
Performance Throughput
Default
1-Gbps throughput.
ACE-AP-500M-LIC
0.5-Gbps throughput.
ACE-AP-01-LIC
1-Gbps throughput.
ACE-AP-02-LIC
2-Gbps throughput.
ACE-AP-04-LIC
4-Gbps throughput.
ACE-AP-02-UP1
Upgrade from 1-Gbps to 2-Gbps throughput.
ACE-AP-04-UP1
Upgrade from 1-Gbps to 4-Gbps throughput.
ACE-AP-04-UP2
Upgrade from 2-Gbps to 4-Gbps throughput.
Virtualization
Default
1 admin/5 user contexts.
ACE-AP-VIRT-020
1 admin/20 user contexts.
SSL
Default
100 TPS.
ACE-AP-SSL-05K-K9
5000 TPS.
ACE-AP-SSL-07K-K9
7500 TPS.
ACE-AP-SSL-UP1-K9
Upgrade from 5000 TPS to 7500 TPS.
HTTP Compression
Default
100-Mbps.
ACE-AP-C-500-LIC
500-Mbps.
ACE-AP-C-1000-LIC
1-Gbps.
ACE-AP-C-2000-LIC
2-Gbps.
ACE-AP-C-UP1
Upgrade from 500-Mbps to 1 Gbps.
ACE-AP-C-UP2
Upgrade from 500-Mbps to 2 Gbps.
ACE-AP-C-UP3
Upgrade from 1 Gbps to 2 Gbps.
Application Acceleration Feature Pack License
ACE-AP-OPT-LIC-K9
Application acceleration and optimization. By default, the ACE performs up to 50 concurrent connections. With the application acceleration and optimization software feature pack installed, the ACE can provide greater than 50 concurrent connections.
This license increases the operating capabilities of the following features:
•Delta optimization
•Adaptive dynamic caching
•FlashForward
•Dynamic Etag
ACE-AP-02-LIC=
Upgrade Performance License 2 Gbps Spare -
Can ACE send out email alerts for failed probes?
hi guys:
Can ACE send out email alerts to users if the probes failed?
if no, is there any plan to put in this function in the future release?
thanks a lot
i know the work around is to set up the sys-log and configure the sys-log server to send out the mail.If there are no email alerts when a real server fails the probe and gets put out of rotation, how else will one know that the server is out of rotation.
Is this feature in the GUI ANM software?
John... -
ACE 4710 transparent LB with two Caches and two routers.
Hello,
I have ACE 4710 that load balance two cach flows (bluecoat), i am doing pbr on the routers to send the traffic destined to port 80 to ACE then Cach farm. After that the Cach flow will get the page from the internet via two routers. The return traffic will match another pbr on the routers with source port 80 that will send it to the ACE then CachFlow again .....then to the users.
I am not using ip-spoofing on the CachFlow for now. In the figure attached i created a VIP 0.0.0.0 0.0.0.0 port 80 on the interface on the ACE facing the routers, but the question is do i have to create another VIP 0.0.0.0 0.0.0.0 port 80 on the interface on ACE facing the Cach Flow? or just forward the traffic on the default route? What might be the default route since i have to use two routers and i cannot use hsrp?
Kindly I need some assistance
Thank you and regards,
George
access-list PERMIT_ALL line 8 extended permit ip any any
access-list CFLOW line 8 extended permit ip any any
ip name-server 8.8.8.8
ip name-server 4.2.2.2
##################################Config for Cache Cache Servers###################
probe http CISCO_WWW_PROBE
ip address 72.163.4.161
interval 2
faildetect 2
passdetect interval 2
passdetect count 5
request method head url /index.html
expect status 200 200
exit
probe http YAHOO_WWW_PROBE
ip address 87.248.112.181
interval 2
faildetect 2
passdetect interval 2
passdetect count 5
request method head url /index.html
expect status 200 200
exit
serverfarm host TRANSPARENT_PROXY_SF
description Transparent Proxy Farm
transparent
predictor hash url
probe CISCO_WWW_PROBE
probe YAHOO_WWW_PROBE
rserver CFLOW01
inservice
rserver CFLOW02
inservice
exit
exit
############################################# Router Cache Farm ############################
probe icmp ICMP_PROBE
description *** Probe for icmp health monitoring ***
interval 5
faildetect 2
passdetect interval 60
passdetect count 2
exit
rserver host Router01
description Connection to Sodetel Router
ip address 192.168.14.4
probe ICMP_PROBE
inservice
rserver host Router02
description Connection to IDM Router
ip address 192.168.14.5
probe ICMP_PROBE
inservice
serverfarm host Routers
description Transparent Proxy Farm
transparent
predictor hash url
probe ICMP_PROBE
rserver Router01
inservice
rserver Router02
inservice
exit
exit
################################# Management################################
class-map type management match-any REMOTE_MGMT
description Allow Remote management for below protocols
8 match protocol icmp any
9 match protocol ssh source-address 172.31.13.31 255.255.255.255
10 match protocol ssh source-address 172.31.31.21 255.255.255.255
policy-map type management first-match REMOTE_MGMT_ALLOW_POLICY
class REMOTE_MGMT
permit
class-map match-all CFLO2Internet
2 match virtual-address 0.0.0.0 0.0.0.0 any
class-map match-all TRANSPARENT_VIP_CM
2 match virtual-address 0.0.0.0 0.0.0.0 tcp eq www
policy-map type loadbalance first-match TRANSPARENT_LB_PM
class class-default
serverfarm TRANSPARENT_PROXY_SF backup Routers
policy-map type loadbalance first-match CFLO2Internet_LB
class class-default
serverfarm Routers
policy-map multi-match CFLO2Internet_PM
class CFLO2Internet
loadbalance vip inservice
loadbalance policy CFLO2Internet_LB
loadbalance vip icmp-reply active
connection advanced-options TCP
policy-map multi-match L3L4_PM
class TRANSPARENT_VIP_CM
loadbalance vip inservice
loadbalance policy TRANSPARENT_LB_PM
loadbalance vip icmp-reply active
connection advanced-options TCP
====Interfaces======
interface vlan 11
description Interface between Routers and ACE
ip address 192.168.14.2 255.255.255.224
alias 192.168.14.1 255.255.255.224
peer ip address 192.168.14.3 255.255.255.224
no icmp-guard
access-group input PERMIT_ALL
service-policy input REMOTE_MGMT_ALLOW_POLICY
service-policy input L3L4_PM
no shutdown
interface vlan 21
description Connection to CFlow ServerFarm
ip address 192.168.12.2 255.255.255.224
alias 192.168.12.1 255.255.255.224
peer ip address 192.168.12.3 255.255.255.224
no icmp-guard
access-group input CFLOW
service-policy input CFLO2Internet_PM ------>>>> Is this necessary???
no shutdownHi George,
In the topology you described, only the service-policy in the interface towards the routers is necessary. For the traffic from the caches, the ACE will just forward to the default gateway.
The only problem is, as you mentioned, that you cannot use HSRP. In that case, you can still configure two default gateways, but there is no way to predict which one the ACE will use at a given time (the way it does to select the one it will use is sending an ARP request to both gateways and using the one that replies first until the ARP entry expires)
If you need to load-balance the traffic between both routers, then yes, you would need to configure a new VIP on the cache side and load-balanced to a transparent serverfarm composed of both routers.
Regards
Daniel -
Rservers initiated traffic not sourcing the traffic as VIP in Ace 4710
One of the feature of our application is that our Application Server initiate text message to our devices sourcing from UDP 1120 and device need to see the message come from a specific pubic IP (2.2.2.2) with UDP port 1120 and reply back with the same Public IP (2.2.2.2) with UDP port 1120.The problem is we can make that happen if we have only one server in our ACE Serverfarm when we do a SNAT the real servers with the VIP address (10.1.246.32) but it does not work when we have more than one server in the Serverfarm. Since we have 2 servers, i cannot nat the real servers with the VIP address, if I do a PAT, obviously it is changing the source port of the request.
Note: This setup is working fine with the Cisco Content Switch module running on chasis 6509. When I sniff the traffic initiated from the server coming the CSM load balancer, it is sourcing the traffic as the VIP and the source port remains the same by default but this is not the case with ACE 4710
Traffic flow as follows
===============
ACE 4710 FWSM (Firewall static NAT) Device ( configured with 2.2.2.2:1120 (udp) to snd/rcv msg)
VIP
Rserver 1 - 10.1.104.80 10.1.246.32 10.1.246.32 < - > 2.2.2.2 1.1.1.1
Rserver 2 - 10.1.104.81c
----------------------------------------------------------> -------------------------------> - traffic flow from server to the device when we send msg
Configs:
======
rserver host server1
ip address 10.1.104.80
inservice
rserver host server2
ip address 10.1.104.81
inservice
serverfarm host SFARM
failaction purge
probe ICMP
rserver server1
inservice
rserver server2
inservice
access-list TEST-1120 line 8 extended permit udp host 10.1.104.80 eq 1120 any
access-list TEST-1120 line 16 extended permit udp host 10.1.104.81 eq 1120 any
parameter-map type connection UDP_TIMEOUT
set timeout inactivity 3600
sticky ip-netmask 255.255.255.255 address source STKY-SFARM
serverfarm SFARM
timeout 180
replicate sticky
class-map match-all CLS-SFARM
2 match virtual-address 10.1.246.32 udp eq 1120
class-map match-all SERVERNAT
2 match access-list TEST-1120
policy-map type loadbalance first-match POL-SFARM
class class-default
sticky-serverfarm STKY-SFARM
policy-map multi-match POL-LB
class CLS-SFARM
loadbalance vip inservice
loadbalance policy POL-SFARM
loadbalance vip icmp-reply active
connection advanced-options UDP_TIMEOUT
class SERVERNAT
nat dynamic 1 vlan 244
int vlan 244
ip address 10.1.246.2 255.255.255.0
service-policy input POL-LB
nat-pool 1 10.1.246.32 10.1.246.32 netmask 255.255.255.255
mac-sticky enable
no icmp-guard
no shut
interface vlan 2506
ip address 10.1.104.2 255.255.255.0
service-policy input POL-LB
mac-sticky enable
no icmp-guard
no shutI see in CSS, they are able to nat the source ip address with VIP and port-mapping diabled. How do I implement
portmap disable in ACE 4710
Disabling Port Mapping
By default, the CSS NATs source IP addresses and PATs source ports for a configured source group. If you configure the portmap disablecommand in a source group, the CSS performs NAT on the source IP addresses but does not perform PAT on the source ports of UDP traffic that matches on that source group.
For UDP applications with high-numbered assigned ports (for example, SIP and WAP), we recommend that you preserve those port numbers by configuring destination services in source groups instead of using the portmap disable command. Destination services cause the CSS to NAT the client source ports, but not the destination ports. For information about configuring destination services, -
Need help to Configure Cisco ACE 4710 Cluster Deployment
Dear Experts,
I'm newbie for Cisco ACE 4710, and still I'm in learning stage. Meanwhile I got chance at my work place to deploy a Cisco ACE 4710 cluster which should load balance the traffic between two Application Servers based on HTTP and HTTPS traffic. So I was looking for good deployment guide in Cisco SBA knowledge base then finall found this guide.
http://www.cisco.com/en/US/docs/solutions/SBA/February2013/Cisco_SBA_DC_AdvancedServer-LoadBalancingDeploymentGuide-Feb2013.pdf
This guide totally fine with my required deployment model. I have same deployment environment as this guide contains with ACE cluster that connects to two Cisco 3750X (Stack) switches. But I have some confusion places in this guide
This guide follow the "One-armed mode" as a deployment method. But when I go through it further I have noticed that they have configured server VLAN as a 10.4.49.0/24 (all servers reside in it) and Client side VIP also in same VLAN which is 10.4.49.100/24 (even NAT pool also).
My confusion is, as I have learned about Cisco ACE 4710 one-armed mode deployment method, it should has two VLAN segments, one for Client side which client request come and hit the VIP and then second one for Server side. which means besically two VLANs. So please be kind enough to go through above document then tell me where is wrong, what shoud I need to do for the best. Please this is an urgent, so need your help quickly.
Thanks....!
-Amal-Dear Kanwal,
I need quick help for you. Following are the Application LB requirements which I received from my clinet side.
Following detail required for configuring Oracle EBS Apps tier on HA:
LBR IP and Name required to configure EBS APPS Tier (i.e, ap1ebs & ap2ebs nodes)
Suggested IP and Name for LBR:
IP : 172.25.45.x [should be on same 172.25.45 subnet of ap1ebs & ap2ebs nodes]
ebiz.xxxx.lk [on port 80 for http protocol accessibility]
This LBR IP & name must be resolve and respond on DNS network
Server Farm detail for LBR Setup
Following detail will be use for configuring the LBR:
LBR IP and Name :
IP : 172.25.45.x [should be on same 172.25.45 subnet of ap1ebs & ap2ebs nodes]
ebiz.xxxx.lk [on port 80 for http protocol accessibility]
This LBR IP & name must be resolve and respond on DNS network
Server Farm Detail for LBR setup:
Server 1 (EBS App1 Node, ap1ebs):
IP : 172.25.45.19
Server Name: ap1ebs.xxxx.lk [ap1ebs hostname is an example, actual hostname will be use]
Protocol: http
Port: 8000
Server 2 (EBS App2 Node, ap2ebs):
IP : 172.25.45.20
Server Name: ap2ebs.xxxx.lk [ap2ebs hostname is an example, actual hostname will be use]
Protocol: http
Port: 8000
Since my client needs to access URL ebiz.xxxx.lk which should be resolved by IP 172.25.45.21 (virtual IP) via http (80) before they deploy the app on the two servers I just ran web service on both servers (Linux) and was trying to access http://172.25.45.21 it was working fine and gave me index.html page. Now after my client has deployed the application then when he tries to access the page http://172.25.45.21 he cannot see his main login page. But still my testing web servers are there on both servers when I type http://172.25.45.21 it will get index.html page, but not my client web login page. What can I do for this ?
Following are my latest config :
probe http Get-Method
description Check to url access /OA_HTML/OAInfo.jsp
interval 10
faildetect 2
passdetect interval 30
request method get url /OA_HTML/OAInfo.jsp
expect status 200 200
probe udp http-8000-iRDMI
description IRDMI (HTTP - 8000)
port 8000
probe http http-probe
description HTTP Probes
interval 10
faildetect 2
passdetect interval 30
passdetect count 2
request method get url /index.html
expect status 200 200
probe https https-probe
description HTTPS traffic
interval 10
faildetect 2
passdetect interval 30
passdetect count 2
ssl version all
request method get url /index.html
probe icmp icmp-probe
description ICMP PROBE FOR TO CHECK ICMP SERVICE
rserver host ebsapp1
description ebsapp1.xxxx.lk
ip address 172.25.45.19
conn-limit max 4000000 min 4000000
probe icmp-probe
probe http-probe
inservice
rserver host ebsapp2
description ebsapp2.xxxx.lk
ip address 172.25.45.20
conn-limit max 4000000 min 4000000
probe icmp-probe
probe http-probe
inservice
serverfarm host ebsppsvrfarm
description ebsapp server farm
failaction purge
predictor response app-req-to-resp samples 4
probe http-probe
probe icmp-probe
inband-health check log 5 reset 500
retcode 404 404 check log 1 reset 3
rserver ebsapp1 80
conn-limit max 4000000 min 4000000
probe icmp-probe
inservice
rserver ebsapp2 80
conn-limit max 4000000 min 4000000
probe icmp-probe
inservice
sticky http-cookie jsessionid HTTP-COOKIE
cookie insert browser-expire
replicate sticky
serverfarm ebsppsvrfarm
class-map type http loadbalance match-any default-compression-exclusion-mime-type
description DM generated classmap for default LB compression exclusion mime types.
2 match http url .*gif
3 match http url .*css
4 match http url .*js
5 match http url .*class
6 match http url .*jar
7 match http url .*cab
8 match http url .*txt
9 match http url .*ps
10 match http url .*vbs
11 match http url .*xsl
12 match http url .*xml
13 match http url .*pdf
14 match http url .*swf
15 match http url .*jpg
16 match http url .*jpeg
17 match http url .*jpe
18 match http url .*png
class-map match-all ebsapp-vip
2 match virtual-address 172.25.45.21 tcp eq www
class-map type management match-any remote_access
2 match protocol xml-https any
3 match protocol icmp any
4 match protocol telnet any
5 match protocol ssh any
6 match protocol http any
7 match protocol https any
8 match protocol snmp any
policy-map type management first-match remote_mgmt_allow_policy
class remote_access
permit
policy-map type loadbalance first-match ebsapp-vip-l7slb
class default-compression-exclusion-mime-type
serverfarm ebsppsvrfarm
class class-default
compress default-method deflate
sticky-serverfarm HTTP-COOKIE
policy-map multi-match int455
class ebsapp-vip
loadbalance vip inservice
loadbalance policy ebsapp-vip-l7slb
loadbalance vip icmp-reply active
nat dynamic 1 vlan 455
interface vlan 455
ip address 172.25.45.36 255.255.255.0
peer ip address 172.25.45.35 255.255.255.0
access-group input ALL
nat-pool 1 172.25.45.22 172.25.45.22 netmask 255.255.255.0 pat
service-policy input remote_mgmt_allow_policy
service-policy input int455
no shutdown
ft interface vlan 999
ip address 10.1.1.1 255.255.255.0
peer ip address 10.1.1.2 255.255.255.0
no shutdown
ft peer 1
heartbeat interval 300
heartbeat count 10
ft-interface vlan 999
ft group 1
peer 1
no preempt
priority 110
associate-context Admin
inservice
ip route 0.0.0.0 0.0.0.0 172.25.45.1
Hope you will reply me soon
Thanks....!
-Amal- -
ACE 4710: Config Allows all traffic except large HTTP downloads
Hi Folks,
Got an ACE 4710 with a basic config that seems to work for all traffic except large downloads.
I've attached the current config
As I mentioned I can do normal HTTP to a standard destination like google or SSH through the ACE or ICMP
If i try to get a large file from the server side of ACE, then a trace shows that the first and subsequent 1460Byte packets dont go through ACE
I've thought of parse lengths, but i cannot see any that seem to affect the generic L4 maps that I am trying to use
Cheers
AlanI've seen a similar fault. I suppose a lower MSS was sent in the TCP SYN handshake packets (1300 or 1380?) and the packets exceeding that value were dropped by the ACE. This is the default behavior which can be switched to a less strict mode by either
exceed-mss allow
or
no normalization
commands.
In our case, a linux web server was whose replies wouldn't keep to the MSS limit. -
Using the ACE 4710 for loadbalancing a Sharepoint site.
We currently have a HTTP probe setup to check the port 80 status of the rserver.
Is there anyway to get the HTTP probe to check a DNS entry for each of the application sites? For instance http://info vs http://site are two different web sites running on the same IP. One site could have a problem but the actual port 80 for the IP may be still alive.
Thanks for any information.Has anyone figure this out? I am tring to get healthchecks/probes setup in this same fashion. I have 2 servers with 1 IP but have many sites. I want to probe each side and ensure I get a 200 code. I also have to provide credentials to the site. It seems that if i open IE I can log in just fine to the site with the credentials. However there is an active x control box that is wanting to be installed. When I set this up on my ACE it seems I am getting a http 401 unauthorized error. I have done a wireshark capture while I was browsing and I see the 401 however it also reports a 200 code after that. Do you think this is a problem because of the active x control wanting to be downloaded? Or is this an issue with the first http code that is recieved by the probe, that being the 401 and then the 200? Below is my config (cleaned of course).
probe http HTTP-80-OUR.DOMAIN.COM
interval 15
passdetect interval 60
credentials
request method get url http://our.domain.com/default.aspx
expect status 200 200
header Host header-value "our.domain.com"
open 1
rserver host SERVER-A
ip address X.X.X.47
inservice
rserver host SERVER-B
ip address X.X.X.48
inservice
serverfarm host FARM-AB
predictor leastconns
probe HTTP-80-OUR.DOMAIN.COM
rserver SERVER-A
inservice
rserver SERVER-B
inservice
ACE4710# show probe HTTP-80-OUR.DOMAIN.COM detail
probe : HTTP-80-OUR.DOMAIN.COM
type : HTTP
state : ACTIVE
description :
port : 80 address : 0.0.0.0 addr type : -
interval : 15 pass intvl : 60 pass count : 3
fail count: 3 recv timeout: 10
http method : GET
http url : http://our.domain.com
conn termination : GRACEFUL
expect offset : 0 , open timeout : 1
expect regex : -
send data : -
------------------ probe results ------------------
associations ip-address port porttype probes failed passed health
------------ ---------------+-----+--------+--------+--------+--------+------
serverfarm : OUR.DOMAIN.COM-10.25.4.12-L3-FARM
real : SERVER-A[0]
X.X.X.47 80 DEFAULT 414 406 8 FAILED
Socket state : CLOSED
No. Passed states : 1 No. Failed states : 2
No. Probes skipped : 0 Last status code : 401
No. Out of Sockets : 0 No. Internal error: 0
Last disconnect err : Received invalid status code
Last probe time : Wed Jun 2 17:44:18 2010
Last fail time : Wed Jun 2 13:37:04 2010
Last active time : Wed Jun 2 13:34:19 2010
real : SERVER-B[0]
X.X.X.48 80 DEFAULT 414 406 8 FAILED
Socket state : CLOSED
No. Passed states : 1 No. Failed states : 2
No. Probes skipped : 0 Last status code : 401
No. Out of Sockets : 0 No. Internal error: 0
Last disconnect err : Received invalid status code
Last probe time : Wed Jun 2 17:44:20 2010
Last fail time : Wed Jun 2 13:37:06 2010
Last active time : Wed Jun 2 13:34:21 2010 -
ACE 4710 - Internet Explorer cannot display the webpage randomly
We have a ACE 4710 with a basic config, (see below).
When clicking on a tab from a window within Interent explorer we occasionally get an issue with it returning: "Internet Explorer cannot display the webpage" The details show "Access is denied" accessing a particular line of a javascript file.
We have put one web server out of service in the farm to make sure that this isn't a result of stickyness not quite working.
We have tested extensively by going directly to the web server directly without the load balancer and cannot reproduce the problem but we can produce the issue within a few minutes when going to the load balanced address.
Thanks in advance for any advice.
HOST-1/Admin# show run
Generating configuration....
logging enable
logging fastpath
logging standby
logging timestamp
logging trap 6
logging history 6
resource-class SLB_ResourceClass_T_R
limit-resource all minimum 10.00 maximum unlimited
resource-class sticky
limit-resource all minimum 10.00 maximum unlimited
boot system image:c4710ace-t1k9-mz.A5_1_2.bin
peer hostname HOST-2
hostname HOST-1
interface gigabitEthernet 1/1
switchport access vlan 1000
no shutdown
interface gigabitEthernet 1/2
shutdown
interface gigabitEthernet 1/3
description LB003
switchport access vlan 1
shutdown
interface gigabitEthernet 1/4
description LB004
switchport access vlan 2
shutdown
interface port-channel 1
port-channel load-balance src-dst-port
no shutdown
clock timezone standard GMT
switch-mode
context Admin
description SUTLB01
member SLB_ResourceClass_T_R
access-list ALL line 8 extended permit ip any any
access-list ALL line 16 extended permit icmp any any
access-list everyone line 8 extended permit ip any any
access-list everyone line 16 extended permit icmp any any
probe tcp probe_tcp_80
port 80
rserver host Server_S_W301
description Server_S_W301
ip address x.x.32.152
inservice
rserver host Server_S_W302
description Server_S_W302
ip address x.x.32.154
inservice
serverfarm host sfarm_T_R
description sfarm_T_R
predictor leastconns
probe probe_tcp_80
rserver Server_S_W301 80
rserver Server_S_W302 80
inservice
sticky http-cookie Cookie1 T_R_sticky_cookie
cookie insert browser-expire
timeout 3600
serverfarm sfarm_T_R
class-map match-any T_R_L4Class
2 match virtual-address x.x.33.150 tcp eq www
class-map type management match-any remote_access
2 match protocol xml-https any
3 match protocol icmp any
4 match protocol telnet any
5 match protocol ssh any
6 match protocol http any
7 match protocol https any
8 match protocol snmp any
policy-map type management first-match remote_mgmt_allow_policy
class remote_access
permit
policy-map type loadbalance first-match T_R_L7policy
class class-default
sticky-serverfarm T_R_sticky_cookie
policy-map multi-match T_R_L4Policy
class T_R_L4Class
loadbalance vip inservice
loadbalance policy T_R_L7policy
loadbalance vip icmp-reply active
nat dynamic 2 vlan 1000
interface vlan 1000
ip address x.x.33.148 255.255.254.0
access-group input ALL
nat-pool 2 x.x.33.151 x.x.33.151 netmask 255.255.254.0 pat
service-policy input remote_mgmt_allow_policy
service-policy input T_R_L4Policy
no shutdown
ip route 0.0.0.0 0.0.0.0 x.x.32.1
ssh key rsa 1024 force+------------------------------------------+
+-------------- HTTP statistics -----------+
+------------------------------------------+
LB parse result msgs sent : 421347 , TCP data msgs sent : 2099597
Inspect parse result msgs : 0 , SSL data msgs sent : 0
sent
TCP fin msgs sent : 6169 , TCP rst msgs sent: : 769
Bounced fin msgs sent : 5 , Bounced rst msgs sent: : 1
SSL fin msgs sent : 0 , SSL rst msgs sent: : 0
Drain msgs sent : 337811 , Particles read : 5040829
Reuse msgs sent : 0 , HTTP requests : 342499
Reproxied requests : 183422 , Headers removed : 37475
Headers inserted : 342124 , HTTP redirects : 0
HTTP chunks : 224859 , Pipelined requests : 71466
HTTP unproxy conns : 267246 , Pipeline flushes : 0
Whitespace appends : 0 , Second pass parsing : 0
Response entries recycled : 71302 , Analysis errors : 0
Header insert errors : 22 , Max parselen errors : 215
Static parse errors : 99 , Resource errors : 0
Invalid path errors : 0 , Bad HTTP version errors : 0
Headers rewritten : 0 , Header rewrite errors : 0
SSL headers inserted : 0 , SSL header insert errors : 0
SSL spoof headers deleted : 0 , Unproxy msgs sent : 267246
HTTP passthrough stat : 0
NOTE - We did turn on caching at one point to try and resolve the issue but it has since been turned off -
ACE 4710 A3(2.0) and ACS - TACACS+
Hi.
I am having trouble getting my ACE 4710 (A3(2.0) Build 3.0) to cooperate with my Cisco Secure ACS-server. In the same environment I have it working on my ACE Module, with the same configuration.
ACE 4710:
tacacs-server host 10.7.50.20 key 7 "fewhg"
aaa group server tacacs+ tacacs_server_group
server 10.7.50.20
deadtime 15
aaa authentication login default group tacacs_server_group local none
aaa accounting default group tacacs_server_group local
aaa authentication login error-enable
ACS is configured correctly too. I have tried with several users, both in groups, with and without attributes and so forth. The ACS installation works with other devices and with my ACE modules running A2(3.1). I have tried this on both ACS 4.2(0).124 and 4.2(1).15.
The strange part is what I see when I set up Wireshark on my ACS-server to look at the traffic. From what I can see, the ACE only sends a request to the AAA-server if the user exists locally. But I do not get authenticated and Failed Attempts show a line with with Message-Type: "Unknown NAS".
It seems like others have the same problem. The problem is that the link attacked in the topic beneath only leads me back to forum and not to a topic with solution.
https://supportforums.cisco.com/thread/132445?decorator=print&displayFullThread=true#132445
Any help is appreciated and thanks in advance!are you using telnet or ssh ?
if ssh can you try telnet, allow telent on your management policy to do this. Then if it works via telnet , then try ssh again, if it now works then you have hit CSCsu36078
http://tools.cisco.com/squish/03240 -
ACE 4710 HTTPS load balance configuration
Have two ACE 4710 in HA setup. We would like to setup HTTPS loadbalance(actually just a primary and standby configuration in the serverfarm). Initially this would be for Exchange OWA connections but may expand to more HTTPS connections later.
I know there are several ways to do SSL with the ACE( client, server, end-to-end). I am just wanting to know the easiest way to deploy this? Is a certificate always needed on the ACE for each connection? In HA mode would a certificate be needed for both or does it replicate in some way to the other ACE?
Any configuration examples would be helpful.
Thanks.IF you terminate SSL on the ACE you need certificates and key on ace in the context in which you are doing the termination. The certs and keys need to be installed on the active and standby (manually unless using anm to manage).
when speaking of SSL
SSL termination refers to ace terminating SSL and sending to server as clear text
end to end - ACE terminates SSL (to look into payload to make a loadbalance decision or sticky decision) and then re-encrypts to the server, so to the client ACE is an ssl server and to the server the ace is an ssl client.
You can find some config examples at
http://docwiki.cisco.com/wiki/Category:Data_Center_Application_Services_Configuration_Examples -
Hi,
Pls can you help me find out where is my error in the below:
I have an ACE 4710. Also I have 2 Bluecoat Proxy SG working in proxy mode. I want the ACE to be the Load Balancer for these 2 Proxy SG. I configure the ACE as below and put the vip-address in the Internet Explorer LAN Settings but it did not work. Also I configure Policy-based Routing on the Core Switch (for any http or https traffic going through core apply set ip next-hop vip-address).
Core SW SVI:
interface Vlan56
description BC Proxy
ip address 10.0.1.33 255.255.255.224
interface Vlan57
description ACE-LB-Alias
ip address 10.0.1.65 255.255.255.224
ACE 4710:
hostname VSS-ACE-BC-01
interface gigabitEthernet 1/1
description Management
speed 1000M
duplex FULL
switchport access vlan 101
no shutdown
interface gigabitEthernet 1/2
description User Side
speed 1000M
duplex FULL
switchport access vlan 56
no shutdown
interface gigabitEthernet 1/3
description BC Proxy Side
speed 1000M
duplex FULL
switchport access vlan 57
no shutdown
interface gigabitEthernet 1/4
description Failover
speed 1000M
duplex FULL
ft-port vlan 900
no shutdown
context Admin
member sticky
access-list external line 10 extended permit ip any any
access-list external line 20 extended permit icmp any any
access-list external line 30 extended permit tcp any any
access-list external line 40 extended permit udp any any
access-list internal line 10 extended permit ip any any
access-list internal line 20 extended permit icmp any any
access-list internal line 30 extended permit tcp any any
access-list internal line 40 extended permit udp any any
probe tcp web443
port 443
interval 30
faildetect 1
passdetect interval 30
passdetect count 1
open 1
probe tcp web8080
port 8080
interval 30
faildetect 1
passdetect interval 30
passdetect count 1
open 1
rserver host BC01
ip address 10.0.1.41
inservice
rserver host BC02
ip address 10.0.1.42
inservice
serverfarm host web443
probe web443
rserver BC01
inservice
rserver BC02
inservice
serverfarm host web8080
probe web8080
rserver BC01
inservice
rserver BC02
inservice
sticky ip-netmask 255.255.255.255 address source group1
replicate sticky
serverfarm web8080
sticky ip-netmask 255.255.255.255 address source group2
replicate sticky
serverfarm web443
class-map type management match-any REMOTE_ACCESS
2 match protocol telnet any
3 match protocol ssh any
4 match protocol icmp any
5 match protocol http any
6 match protocol snmp any
class-map match-all external-web
2 match virtual-address 10.0.1.70 any
class-map match-all external-web443
2 match virtual-address 10.0.1.70 any
class-map match-any nat-class
2 match access-list external
policy-map type management first-match REMOTE_MGMT
class REMOTE_ACCESS
permit
policy-map type loadbalance http first-match slb
class class-default
sticky-serverfarm group1
policy-map type loadbalance http first-match slb443
class class-default
sticky-serverfarm group2
policy-map multi-match external-access
class nat-class
nat dynamic 1 vlan 57
class external-web
loadbalance vip inservice
loadbalance policy slb
class external-web443
loadbalance vip inservice
loadbalance policy slb443
timeout xlate 120
interface vlan 56
description Server-Side
ip address 10.0.1.43 255.255.255.224
ip verify reverse-path
alias 10.0.1.40 255.255.255.224
peer ip address 10.0.1.44 255.255.255.224
mac-address autogenerate
access-group input internal
service-policy input REMOTE_MGMT
no shutdown
interface vlan 57
description VIP-Interface
ip address 10.0.1.67 255.255.255.224
alias 10.0.1.66 255.255.255.224
peer ip address 10.0.1.68 255.255.255.224
mac-address autogenerate
access-group input external
service-policy input external-access
service-policy input REMOTE_MGMT
no shutdown
interface vlan 101
description Management
ip address 10.220.1.131 255.255.255.0
alias 10.220.1.133 255.255.255.0
peer ip address 10.220.1.132 255.255.255.0
mac-address autogenerate
service-policy input REMOTE_MGMT
no shutdown
ft interface vlan 900
ip address 172.20.100.1 255.255.255.252
peer ip address 172.20.100.2 255.255.255.252
no shutdown
ft peer 1
heartbeat interval 300
heartbeat count 20
ft-interface vlan 900
ft group 1
peer 1
priority 200
peer priority 150
associate-context Admin
inservice
ip route 0.0.0.0 0.0.0.0 10.0.1.65I see that you used:
nat dynamic 1 vlan 57
Where is the nat pool on Vlan 57 ?
May be you can try to assign that and that should help.
Something like below:
Interface vlan 57
nat-pool 1 10.0.1.93 10.0.1.93 netmask 255.255.255.224 pat
regards,
Ajay Kumar
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