Vlan for dmz

Can anyone tell me how to do a simple dmz on my router, its got 2 ethernet interfaces, I have set up a vlan for this on my switches, its for a e-mail server, !!
Thanks
Carl

check out the following link :
http://www.cisco.com/en/US/products/sw/iosswrel/ps5413/products_feature_guide09186a0080235e23.html

Similar Messages

Why all packets dropped with %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs error msg for arp inspected vlans for DMZ and Backup

Hi,
We have got cisco 3759 switch where the followign line was configrued only
ip arp inspection vlan 6,100
And on those vlans no arp inspection trust was configrued. DMZ and backup servers were connected on that switch. Switch got restarted wihtin 5 minutes for the power outage and when the swithc came online it was denying all the packets coming through the vlan 100 adn 6 althought it was allowing packets before the power outage.
It took me 30 minutes to find out that arp inspection was enables which might cause the issue, but I am still unsue why it would block all packets for vlan 100 & 6.After taking out the command ' ip arp inspection vlan 6,100' all started working fine.
What is the reason the switch had this issue? Is there any resolution for this? thanks
FYI: The error messages-
0:48:32: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Gi1/0/1, vlan 6.([001e.0b5f.3a8c/220.233.31.177/0000.0000.0000/220.233.31.182/14:48:32 AEST Sun Feb 28 1993])
00:48:33: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Gi1/0/3, vlan 6.([000c.2915.1abe/220.233.31.184/0000.0000.0000/220.233.31.177/14:48:32 AEST Sun Feb 28 1993])
00:48:33: %SW_DAI-4-DHCP_SNOOPING_DENY: 2 Invalid ARPs (Req) on Gi1/0/1, vlan 6.([001e.0b5f.3a8c/220.233.31.177/0000.0000.0000/220.233.31.178/14:48:33 AEST Sun Feb 28 1993])
00:48:33: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Gi1/0/1, vlan 6.([001e.0b5f.3a8c/220.233.31.177/0000.0000.0000/220.233.31.184/14:48:33 AEST Sun Feb 28 1993])
Regards,
Arman

Code version:
System image file is "flash:c3750-ipservicesk9-mz.122-50.SE3/c3750-ipservicesk9-mz.122-50.SE3.bin"
I don’t have any etherchannel running from the switch. It is connected to vmware machines which are on DMZ.
rgds,
arman

SFTP/FTP Proxy Problems - Works for DMZ but not for Internet Hosts?!

Hi together,
we have a strange problem with our TMG Proxy, some infrastructure informations first
So we have the Client LAN with the IP range 192.168.11.x which is routeable to Server LAN 192.168.3.x but not to DMZ LAN 192.168.200.x.. The TMG is a 2 Node Array, 192.168.200.5 is the DMZ VIP. TMG DMZ IP Adress (192.168.200.5) and physical Adresses have
an NAT relation to one Public IP. HTTPS Inspection is active. We dont use (and dont want to) the TMG Client component.
When i use WinSCP, Putty or Filezilla and connect to a DMZ LAN Host (192.168.200.x) with "HTTP Proxy" (192.168.3.108:8080) everything is fine, it works like expected...
When i connect to an Internet Host it fails regardless which protocol i use - ftp, sftp or ssh. The error i get is
"The token supplied to the function is invalid."
An example for a failed SFTP Connection
Filezilla
Status: Connecting to system.internet.de...
Trace: Going to execute "C:\Program Files (x86)\FileZilla FTP Client\fzsftp.exe"
Response: fzSftp started
Trace: CSftpControlSocket::ConnectParseResponse(fzSftp started)
Trace: CSftpControlSocket::SendNextCommand()
Trace: CSftpControlSocket::ConnectSend()
Command: proxy 1 "tmg.local" 8080 "domain\user" "***********"
Trace: CSftpControlSocket::ConnectParseResponse()
Trace: CSftpControlSocket::SendNextCommand()
Trace: CSftpControlSocket::ConnectSend()
Command: open "[email protected]" 22
Trace: Looking up host "system.internet.de"
Trace: Connecting to 192.168.3.108 port 8080
Trace: Proxy error: 502 Proxy Error ( Das Token, das der Funktion übergeben wurde, ist ungültig. )
Error: Proxy error: 502 Proxy Error ( Das Token, das der Funktion übergeben wurde, ist ungültig. )
Trace: CControlSocket::DoClose(64)
Trace: CSftpControlSocket::ResetOperation(66)
Trace: CControlSocket::ResetOperation(66)
Error: Could not connect to server
Trace: CFileZillaEnginePrivate::ResetOperation(66)
TMG protocol throws this
Protokolltyp: Webproxy (Forward)
Status: 0x80090308
Regel: Webzugriff FTP Test
Quelle: Intern (192.168.11.31:44673)
Ziel: Extern (78.46.182.171:22)
Anforderung: system.internet.de:22
Filterinformationen: Req ID: 106f1cb7; Compression: client=No, server=No, compress rate=0% decompress rate=0%
Protokoll: https-inspect
Benutzer: domain\user
Hope you can explain me what we doin wrong or how to find out whats the problem. I didn`t find many informations about "0x80090308" or "The token supplied to the function is invalid.". Disabling HTTPS Inspection for the Source 192.168.11.31
doesnt change anything...
Connection to an DMZ Host looks like this:
Filezilla
Status: Connecting to system.dmz...
Trace: Going to execute "C:\Program Files (x86)\FileZilla FTP Client\fzsftp.exe"
Response: fzSftp started
Trace: CSftpControlSocket::ConnectParseResponse(fzSftp started)
Trace: CSftpControlSocket::SendNextCommand()
Trace: CSftpControlSocket::ConnectSend()
Command: proxy 1 "tmg.local" 8080 "domain\user" "***********"
Trace: CSftpControlSocket::ConnectParseResponse()
Trace: CSftpControlSocket::SendNextCommand()
Trace: CSftpControlSocket::ConnectSend()
Command: open "[email protected]" 22
Trace: Looking up host "system.dmz"
Trace: Connecting to 192.168.3.108 port 8080
Trace: Server version: SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2
Trace: Using SSH protocol version 2
Trace: We claim version: SSH-2.0-PuTTY_Local:_Mar_28_2014_10:34:48
Trace: Doing Diffie-Hellman group exchange
Trace: Doing Diffie-Hellman key exchange with hash SHA-256
Trace: Host key fingerprint is:
TMG Protocol
Protokolltyp: Webproxy (Forward)
Status: 0 Der Vorgang wurde erfolgreich beendet.
Regel: Webzugriff FTP Test
Quelle: Intern (192.168.11.31:48818)
Ziel: Umkreis 2 (192.168.200.205:22)
Anforderung: system.dmz:22
Filterinformationen: Req ID: 10727dce; Compression: client=No, server=No, compress rate=0% decompress rate=0%
Protokoll: SSL-tunnel
Benutzer: domain\user
Thanks in advance.
Regards
Matthias

Hi Keith,
ok i found out the problem is https inspection is enabled....
- when i disable https inspection for source, same problem
- when i disable https inspection for destination, problem solved
the root cause why this worked is we had https inspection disabled for dmz destinations.
there is no direct route relation between the lan and dmz.
why is source exception not working in this?

Setting up a Test Voice VLAN for Lync 2013

I want to set up a second voice vlan to be a test vlan.
In the current situation the customer has voice and data running on vlan1. The customer insist on taking incremental steps to improve QoS. I have advocated separated vlans for voice and data. They just want to move everything (phase 1) to a different
vlan. They want to see how getting all traffic of vlan 1 will improve there performance. Again, I recommended the best practice, they want to try this approach first.
I am conducting a pilot test with just one cx600 IP phone. and a single switchport. I created a new vlan99 using VTP. I configured the switchports on the Cisco 2960-x switch as follows.
#switchport mode access
#switchport access vlan 99
The phone gets its correct vlan id, and pulls its IP from the correct dhcp scope. However the phone displays "connecting with the lync server" for a long time, then "connecting to download its certificates". This takes a long time then fails.
If I change the switchport back to vlan1 it works fine. What can be the problem? Does the vlan99 need to be defined on the lync server? How many vlans can be supported by Lync 2013?
Thank you,
gigiu

Did you set the VLAN Configuration for Lync Phone Edition?
You can check the following links:
http://blog.schertz.name/2011/01/manual-vlan-configuration-for-lync-phone-edition/
http://www.bricomp.com/blogs/post.cfm/dedicated-voice-vlan-for-lync-devices
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please
make sure that you completely understand the risk before retrieving any suggestions from the above link.
Lisa Zheng
TechNet Community Support

Separate VLAN for CAPWAP

Hello,
I'm in the process of deploying a WLC2504 in an eviroment which requires a private VLAN for access to file servers and other network resources, as well as a guest network for internet access.
As far as performance is concerned, will I get acceptable throughput on my WLANs with the CAPWAP tunnel flowing over the same subnet as the private network? I've seen some suggestions that recommend a separate VLAN dedicated to CAPWAP, but I don't know if this is just a suggestion for security. I understand that CAPWAP supports encryption of control messages, but not data transmissions without additional licensing. If this is just a suggestion for security, I don't think this is much of a concern. I don't see anyone on the private network intercepting guest transmissions. Could someone please advise me on this?

Thanks for your clarification guys! I'm in the process of installing my fist CUWN. We are implementing 10 APs and have dealt with a few issues, namely throughput for laptops. I knew other factors could definitely come into play, but I wanted to rule topology out. Laptops are currently pulling very low internet speed tests results, whereas mobile devices seem to fare much better. I've tried testing with mostly 2.4 GHz connections from laptops, but even the 5GHz seem to struggle. I'm working with the Cisco TAC a bit on this one. Per their suggestion, I'm going to run Iperf to test internal performance before I involve network firewalls and Internet connectivity in the mix.

RV082 - Vlans for guest access

Hello,
I have an RV082 router which supports port based VLANs. I have a WAP that I want to use to provide guest internet access which cannot see our production vlan. I plugged the WAP into port 8 and set the vlan for port 8 to vlan 2. Here's the part where I'm confused. I am unable to get an IP address when connecting to the WAP because our DHCP server is a windows box on vlan 1. So, I tried using the DHCP relay option and entering the ip address of the windows box DHCP server. I am still not able to retrieve an IP address when connecting to the WAP. Someone mentioned setting up an ip helper address. I connected to the CLI of the RV082 but could not figure out the syntax of how to set up the ip helper address. Any help with any of this would be much appreciated. I only have about a week to set this up so I have to figure something out.

Mr. MacKay,
Since the RV082 don't support vlan tagging, you could get a layer 3 switch and create the vlans there and setup a dhcp relay to a server for the vlan ip addresses.
Then it would be just setting up static routes in the switch pointing to the router as the default gateway and finally doing routes back from the rv082 for the vlan you created.
A quick solution would be get a wireless router and set it up by plugging the wan into your network and setting the lan on a totally different ip address scheme. Then only allow access to the rv082 on that network and deny the rest of the network access to the guest and vice versa.
Kind of a work around.
The quickest fix would be getting a vlan aware router like rvs4000 or the wireless version wrvs4400n and if you need dual wan with vlans and wireless you could go with the sa520w.

System VLANs for AD, vCentre...

Hi All,
In the event that my entire data centre were to shut-down, is it recommended that the VLANs for AD, vCentre, vCentre DB be configured as System VLANs so that when everything powers up the VEM modules can actually communicate with these systems in order to get their configs? I am aware that the system vlans pretty much negate any security applied to them however was looking to see the best practice.
thanks,

Yeah it wouldn't be a bad idea. Just make sure to add the system vlan to the eth and veth port-profiles.
And remember you can only have 32 port-profiles with the system vlan command in them.
Also understand that when the VSM is not available to program the VEMs and a system vlan is present on the port-profiles that it is only basic connectivity that is allowed. No higher level features like ACLs or QOS will be working.
Let us know if you need more classification. You can also play with the concept if you want by building a small lab environment. The great thing about the N1KV is it does work on a nested ESXi environment so you can build an entire lab on one host.
louis

Separate vlan for wireless voice

Hi all, I'm about to embark on reconfiguring my home lab, at present I have just 2 vlans which are for VoIP and data, I'm going to split my network so I have the following:
Data VLAN for our home PC's
Voice VLAN for phones
1 wireless VLAN for home laptops
1 wireless VLAN for games consoles
1 wireless guest access so I don't have to give out my own ssid credentials
1 Management VLAN
My question is do I have a separate VLAN for wireless VOIP or do I just use the same Voice VLAN?
Regards
Martyn
Sent from Cisco Technical Support iPad App

Martyn:
Both solutions are valid. You can use the current voice VLAN or create a new VLAN.
If you create a new VLAN you need to apply needed QoS to wired side as well.
If your current Voice VLAN is already configured for QoS then using it for wirelss voice is easier.
So the preffered option is to use your current voice VLAN for wireless voice as well.
HTH
Amjad

Two ISP's for dmz & inside

I have two internet ISP's links, currently dmz and inside interfaces are using one ISP (route outside 0.0.0.0 0.0.0.0 “ISP1_IP”), I need to use one ISP for inside and the other ISP for dmz.
appreciate your help.
Ali

Hi,
I am assuming ISP1 for Internal zone and ISP2 for DMZ.
Internal zone is allowed to access all protocols
access-list inside_access_in extended permit ip Internal-IP 255.255.255.0 any
Allow access from internet to DMZ server
access-list outside1_access_in extended permit tcp any host DMZ-Server'sPulic IP
Pat on the outside and DMZ interface for internal hosts
global (outside) 1 interface
global (dmz) 1 interface
nat (inside) 1 internal-IP netmask
Static NAT mapping for our DMZ server
static (dmz,outside1) DMZ-Server'sGlobal-IP   DMZ-Server's-PrivateIP netmask 255.255.255.255
access-group outside1_access_in in interface outside1
access-group inside_access_in in interface inside
Default Routes
route outside 0.0.0.0 0.0.0.0 ISP1-Gateway 1
route outside1 0.0.0.0 0.0.0.0 ISP2-Gateway 2
hera, outside = ASA port that is connected to ISP1
         outside1=ASA port that is connected to ISP2

VLANs for the WiSM

Hi Everybody,
we followed the cisco layered model in our campus design where we have 6500 switch at the core, 4500 at the distribution and 3750 at the access layer.
The connectivity between the core and the distribution is layer 3, the connectivity between the distribution and access layer is layer 2.we have all the intervlan routing on the distribution switches.we have recently installed two WiSM controllers in our core and planning to deploy light weight access points.
we want to use the exiting VLANS that we created for the wired users on the distribution switch for Wireless LAN users . I wanted to know if this is possible because as the dynamic interfaces for the Wireless VLANS would be created on the WiSM that is on the core switch and as the dynamic interface are like SVIs for the Wireless VLANS.
Secondly i wanted to know what does it mean to assign a VLAN to the WiSM
Regards,
Ahmed Zubedi

I would recommend keeping the wired vlan separate from the wireless vlan.
You need to assign a vlan for the service port of the controllers. This is local to the 6500 and is not routeable. This is how the controllers talk to the 6500. I normally do like a 192.168.1.x

VLANs for multiple customers on the same switch accessing ISP

I have multiple customers accessing the Internet from the same ISP through the same SRW 2016. The switch is set completely at default, with all ports on VLAN 1. I want to separate all the (3) customers' traffic into 3 VLANs for security, but I want them to still access the ISP through port 1. Can I do that with this switch? How would I set port 1 so that all VLANs can send and receive packets through port 1 but still be isolated from each other on the LAN?

Hi,
I had a simular situation. In the past I didn't have a VLAN-capable modem/router and just connected the modem as a normal device to the layer2 switch (Cisco 3548XL at that time). In my setup, I gave all separated LAN's its own multi-VLAN port(s) in its own unique VLAN and the modem a single-VLAN port in its own VLAN. Next I made all the ports who needed internet access member of the modem's VLAN. A nmap scan and testing showed me that the seperated LAN's couldn't connect to eachother.
So, I don't know if i did something stupid (in security way), but it worked like a charm.
Sorry for my English ;-)

Is it possible to use management Vlan as FT Vlan for ACE4710?

Is it allowed to configure ACE4710 management vlan as a FT vlan between two appliances? If allowed, what's the consequence of not using a dedicated FT Vlan?
Thanks a lot

You should not have any other traffic on the dedicated FT vlan.
This is from the docs.
Note Do not use this dedicated VLAN for any other network traffic, including HSRP and data
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/ace/v3.00_A2/configuration/administration/guide/redundcy.html#wp999787
Having any other traffic on this vlan could cause a problem with FT heart beats being dropped, and both ACE could become active. Definitely use a dedicated FT Vlan.
Regards
Jim

Separate VLAN for manag. only on wire?

I'm having hard time trying to understand how to configure Aironet 1200 in a way such that I have two VLANs (for example X and Y, both not 1) so that I have X for only management and management is not seen on wireless side at all, and Y for public traffic.
I went thru' all the old postings about this subject but found no complete example of running config to do it. If anyone has successfully completed doing this, please, can you post a example of IOS command listing how to do it.
Regards,
Pauli Borodulin

Here is a working config that I have. I have two wireless vlans (186, 187) and a third ethernet only vlan (101) which is the management vlan.
interface Dot11Radio0
no ip address
no ip route-cache
encryption vlan 186 key 1 size 128bit 7 xxxxxxxxxxxxxxxxxxxx
encryption vlan 186 key 2 size 128bit 7 xxxxxxxxxxxxxxxxxxxx
encryption vlan 186 key 3 size 128bit 7 xxxxxxxxxxxxxxxxxxxx transmit-key
encryption vlan 186 key 4 size 128bit 7 xxxxxxxxxxxxxxxxxxxx
encryption vlan 186 mode wep mandatory
encryption vlan 187 key 1 size 128bit 7 xxxxxxxxxxxxxxxxxxxx transmit-key
encryption vlan 187 mode wep mandatory
ssid weponly
vlan 186
authentication open
ssid wepeap
vlan 187
authentication open eap eap_methods
authentication network-eap eap_methods
speed basic-1.0 basic-2.0 basic-5.5 basic-11.0
rts threshold 2312
channel 2412
station-role root
no cdp enable
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface Dot11Radio0.186
encapsulation dot1Q 186
no ip route-cache
no cdp enable
bridge-group 186
bridge-group 186 subscriber-loop-control
bridge-group 186 block-unknown-source
no bridge-group 186 source-learning
no bridge-group 186 unicast-flooding
bridge-group 186 spanning-disabled
interface Dot11Radio0.187
encapsulation dot1Q 187
no ip route-cache
no cdp enable
bridge-group 187
bridge-group 187 subscriber-loop-control
bridge-group 187 block-unknown-source
no bridge-group 187 source-learning
no bridge-group 187 unicast-flooding
bridge-group 187 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
ntp broadcast client
interface FastEthernet0.101
encapsulation dot1Q 101 native
no ip route-cache
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
interface FastEthernet0.186
encapsulation dot1Q 186
no ip route-cache
bridge-group 186
no bridge-group 186 source-learning
bridge-group 186 spanning-disabled
interface FastEthernet0.187
encapsulation dot1Q 187
no ip route-cache
bridge-group 187
no bridge-group 187 source-learning
bridge-group 187 spanning-disabled
interface BVI1
ip address 172.25.101.17 255.255.255.0
no ip route-cache
ip default-gateway 172.25.101.1

Separate VLAN for WPA - Cisco 1100

Hello,
Cisco 1100 :
First config. : no vlan with WEP for access network
But when you create a vlan for wpa-psk with simple config (no server manager, no radius, no eap), have you to modify the other peripherals networks (router...).
For example to declare the vlan.
I did not find this information in the documentation of the aironet 1100.
Thank you for your help.
Eddy

There is a good document on Cisco.com which explains how to configure WPA-PSK. The document is available at
http://cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008054339e.shtml#pers
If you are still having issues configuring wpa-psk, please post the configuration so that we can troubleshoot the issue.

Configuring Management VLAN for standalone Nexus 5k

Hi All,
The architecture in the attachment doesnt require redundancy and hence has a single N5k with N2k as FEX. The setup is working fine except for the management vlan and mgmt 0 interface being down.
As of now, mgmt0 interface has no link connected to it. The VLAN for nexus management is also down as mgmt0 cant be assigned to vlans.. Configuring management IP to Loopback interface also doesnt allow adding the same to management vlan.
Is mgmt0 an RJ45 compatible port with N5596? and is there a way I can have out of band management for Nexus 5596? Is there a way I can assign a management IP to the FEX?
Thanks for the inputs.
Thanks,
Bala S

Hello Balachandhar,
Mgmt interface on N5K exists to provide out of band management to the device.
Mgmt interface belongs to management vrf. You can reach the N5K on mgmt interface once you configure IP to mgmt interface and connect it to upstream switch port belonging to mgmt vlan.
The FEX cannot be seperately managed. You need to connect to the parent N5K device and manage it.
HTH
Padma

Vlan for dmz

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