Ppp multilink problem

Hi
I am having a problem configuring ip rtp with interleaving on two 1721's prioritizing voice traffic between two ip voice devices over a 128k point to point link. This is my config...
interface Multilink1
ip address 192.168.24.2 255.255.255.0
no cdp enable
ppp multilink
ppp multilink fragment delay 20
ppp multilink interleave
ppp multilink group 1
ip rtp header-compression iphc-format
ip tcp header-compression iphc-format
ip rtp priority 8100 100 40
interface Serial0
bandwidth 128
no ip redirects
no ip unreachables
no ip proxy-arp
encapsulation ppp
ppp multilink
no cdp enable
Everytime I add the 'ppp multilink' to the serial, I get the virtual-access interface bouncing up and down with no traffic flowing.
any ideas?

Cannnnnnnnt see much wrong, try adding "ppp multilink group 1" to int S0 config.

Similar Messages

I have asr 1000 with asr1000rp2-adventerprisek have problem when I gave PPP Multilink to the interface Dialer

Hello,
please Urgent Help
I have ASR 1000 with asr1000rp2-adventerprisek Version, when I give PPP Multilink to the dialer interface it show following error :
FMFP-3-OBJ_DWNLD_TO_CPP_FAILED: F0: fman_fp_image:
MLP bundle , link download to CPP failed
please urgent help

this error comes with the command PPP multilink, it is a lot of letters and numbers and then this last line comes this message
FMFP-3-OBJ_DWNLD_TO_CPP_FAILED: F0: fman_fp_image:
MLP bundle 181, link 178 download to CPP failed
the configuration still not installed but I configured just the following lines
interface Virtual-Template
ip unnumbered Loopback2
ip mtu 1440
ip load-sharing per-packet
ip tcp adjust-mss 1400
no logging event link-status
peer default ip address pool
ipv6 unnumbered Loopback2
ipv6 enable
no ipv6 nd suppress-ra
ppp authentication pap chap callin
ppp multilink
ppp multilink fragment delay 100
ppp multilink mrru local 1546
that were the lines used to configure this Dialer, the image must be asr1000rp2-adventerprisek and not Ipbase but I dont tried to use IPbase.
what do think ?

2800 Multilink Problem

Hello,
We 've got a dial problem with a 2811 branch router (ISDN2) and a 7206 central router (2*ISDN30)
Wehn the 2800 dials in no problem.
When threshold comes up no problem.
But when the second B-channel closed the 2800 doesn't route trafic any more.
Routing protocols still work.
Extended ping from the routers FE interface to de central location form.
But a device connected to the FE interface cannot ping the remote site.
When i use IOS
c2800nm-advsecurityk9-mz.124-10.bin : FAILTY
c2800nm-advsecurityk9-mz.124-12.bin : FAILTY
c2800nm-advsecurityk9-mz.124-5.bin : OKE
c2800nm-advsecurityk9-mz.124-8a.bin : OKE
Branch router:
interface BRI0/2/0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
isdn tei-negotiation first-call
isdn point-to-point-setup
ppp authentication chap
end
interface Dialer10
ip address 1.1.1.1 255.255.255.252
ip pim sparse-dense-mode
encapsulation ppp
dialer pool 1
dialer string 0123456789
dialer load-threshold 75 either
dialer max-call 2
dialer-group 1
no cdp enable
ppp authentication chap callin
ppp chap hostname somerouter
ppp chap password <REMOVED>
ppp multilink
end
Central router:
interface Dialer1
description ISDN:
bandwidth 128
ip address 1.1.1.2 255.255.255.252
ip pim sparse-dense-mode
encapsulation ppp
ip summary-address eigrp 1 0.0.0.0 0.0.0.0 180
dialer pool 1
dialer remote-name someroute
dialer idle-timeout 180
dialer-group 1
no fair-queue
no cdp enable
ppp authentication chap
ppp multilink
end

Hi
Have you checked up the routes for the remote destinations when the second channel is down ?
Can you check whether you are getting any routes available through the live BRI Channel available when the other one goes down ?
Also can you verify whether the channel is stil active using show isdn active command ?
regds

PPP Mulilink problem

Need Help!
Got problem with ppp multilink. Set up it, but the interface show down, like that in both side:
Serial4:0 unassigned YES manual down down
Serial5:0 unassigned YES manual down down
check lthe phisical line, phisical line is ok.
here are configs of both sides
R1:
controller E1 0/0/0
framing NO-CRC4
clock source internal
channel-group 0 timeslots 1-31
controller E1 0/0/1
framing NO-CRC4
clock source internal
channel-group 0 timeslots 1-31
interface Multilink3
ip address 192.10.10.1 255.255.255.252
ppp multilink
ppp multilink interleave
ppp multilink group 3
interface Serial0/0/0:0
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 3
interface Serial0/0/1:0
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 3
R2:
controller E1 4
framing NO-CRC4
clock source line secondary 4
channel-group 0 timeslots 1-31
controller E1 5
framing NO-CRC4
clock source line secondary 5
channel-group 0 timeslots 1-31
interface Multilink3
ip address 172.28.235.37 255.255.255.252
shutdown
ppp multilink
ppp multilink interleave
ppp multilink group 3
interface Serial4:0
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 3
interface Serial5:0
no ip address
encapsulation ppp
ppp multilink
ppp multilink group 3
What to do?

I would assume the multilink interface on R2 been shut down is the issue
interface Multilink3
ip address 172.28.235.37 255.255.255.252
shutdown <------------------- do a no shut on this interface
ppp multilink
ppp multilink interleave
ppp multilink group 3

CBWFQ and PPP Multilink

Hi all,
I have tried to configure CBWFQ and PPP Multilink on an ISDN BRI interface
with DDR. The dialer load-threshold is set to 1 so that both b-channels of the BRI interface are connected when the link comes up.
I need a traffic class with a minmum of 80Kbit/s on this link, but largest bandwidth I'm allowed to configure is 48Kbit/s .
I have tried it directly on the BRI interface and with a Dialer interface.
Both the same effect. When I configure the policy-map into a Dialer interface the policy is also configure to the attached physical links and there the smallest availabe bandwidth is 64k regardless of how many links are configured for multilink.
The configured bandwidth on the BRI is also set to 128k.
So, does anyone know a trick to configure a class with 80k on a DDR/PPP multilink connection which persists of several ISDN b-channels.
Thanks for twist your minds. :-))
Udo

Try giving the required bandwidth in percentage
I think this URL explains a problem that looks similair to yours, hope this helps.
http://www.cisco.com/en/US/tech/tk543/tk544/technologies_tech_note09186a0080094ad2

2 PPP multilinks between same 2 routers

Gents ,
One of our customers wants 2 PPP Multilinks between the PE and his CE.
Both of them never come up together although all member links are active and up.
When i tried to administratively shut down one of them the other comes up and vice versa.
Please give me your opinions and advices.
Thank you.

Hello ,
Ok i will make it much clearer now , we have 4 E1 leased lines between the PE and the CE with static routing between the PE-CE.
The customer is splitted into two major dept's or zones so he wants two separate links with different IP's joining between him and us.
We put 2 E1 links in each multilink and after that we discovered what i've recently described.
Both of the MLPPP never become active at the same time. i.e You should disable one of them inorder for the other to be active and reachable via layer 3 information.
Thank you and i appreciate your response.

RV220W - VPN PPP & RDP problem

Hello!
This is my first post here, so welcome!
I have purchased RV220W router and implemented into the existing netowork. Everything seems to work fine except logging into rdp desktops of wxp's on the local network in the office.
I'm not using router's VPN capabilities. I have made a connection through one of the WXP's VPN locally in the office. I login with password as PPP connection. Everything works fine, but I can only connect through RDP to the machine that is making the connection by "VPN IP". I cannot login to any IP that is local in the office. I can not ping either.
We are using also Macs and the same problem is when connecting with ScreenSharing and pinging.
It is definitely something to be set on the router.
If you have any idea, I would apprecite your help!

Hi again!
After reading similar post I found a "solution".
I have manually put actual RV220W IP as router ip (except of the ip of the XP that is making the vpn connection) on the computer I'm connected to VPN and now it's working fine.
Anyway, thanks for approving this thread.
Cheers,
Adam

Ppp radius problem

Hi guys my problem is about Radius.It can not assign ip to remote host.This host request ppp and it terminated by on our Cisco router(LAC-LNS).And Cisco router uses AAA for authentication and ip assignment.Authentication part is okey.The host can connect radius and passes username password phase.But when the ppp protocol pass next ipcp level, host request;confreq is above,
Primary DNS server IP address: 0.0.0.0
Secondary DNS server IP address: 0.0.0.0
Primary WINS server IP address: 0.0.0.0
Secondary WINS server IP address: 0.0.0.0
IP address: 0.0.0.0
But the Router returns reject;confrej
Primary DNS server IP address: 0.0.0.0
Secondary DNS server IP address: 0.0.0.0
Primary WINS server IP address: 0.0.0.0
Secondary WINS server IP address: 0.0.0.0
IP address: 0.0.0.0
After this negotiation ppp ipcp part is terminated and the host never get ip address.
My question, Although the ppp authentication seems okey, why the remote host does not get ip address.Shoul I focus radius config. or Router config. ?
Thanks.

Hi Marco,
interface Virtual-Template1
ip unnumbered GigabitEthernet0/0.12
no ip mroute-cache
no peer default ip address
ppp authentication pap
ppp ipcp predictive
I will paste here also debug files.
Best regards

Multilink problem with MPLS

we are having two multilink on a router and we are using ldt between those.but we are having drops in the multilink.can anyone guide me.
shivlu

Add the folllowing Configuration on Router-1 and Router-3 Respectively:
R1 Configuration:
router bgp 1
no synchronization
bgp log-neighbor-changes
neighbor 3.3.3.3 remote-as 1
neighbor 3.3.3.3 update-source Loopback1
neigbor 33.33.33.33 remote-as 1
neighbor 33.33.33.33 update-source loopback11
no auto-summary
address-family vpnv4
neighbor 3.3.3.3 activate
neighbor 3.3.3.3 send-community extended
neigbor 33.33.33.33 activate
neigbor 33.33.33.33 send-community extended
exit-address-family
address-family ipv4 vrf os
redistribute connected
redistribute static
no auto-summary
no synchronization
exit-address-family
|
|
ip vrf os
rd 1:1
route-target export 1:1
route-target import 1:1
bgp next-hop 33.33.33.33
R3 Configuration:
router bgp 1
no synchronization
bgp log-neighbor-changes
neighbor 1.1.1.1 remote-as 1
neighbor 1.1.1.1 update-source Loopback3
neighbor 11.11.11.11 remote-as 1
neighbor 11.11.11.11 update-source Loopback33
no auto-summary
address-family vpnv4
neighbor 1.1.1.1 activate
neighbor 1.1.1.1 send-community extended
neigbor 11.11.11.11 activate
neighbor 11.11.11.11 send-community extended
exit-address-family
address-family ipv4 vrf os
redistribute connected
redistribute static
no auto-summary
no synchronization
exit-address-family
ip vrf os
rd 1:1
route-target export 1:1
route-target import 1:1
bgp next-hop 11.11.11.11
This Way, all your VPN Traffic Sourced from R5 Will transit the path of the TE tunnel to reach R4.
Regards,
Mohamed

Multilink PPP problem

Hi Guys,
i got a situation here and hope someone will be able to help me out. Recently i configured a PPP multilink and am facing some issues after that.
Issue 1:
There seems to be lot of input error on multilink interface (150 errors in 40 mins)
Issue 2:
when any of the multilink member interface goes down (all other links are active), am getting packrt drops and request timed out when i ping my other end multi link interface atleast for some 30 sec , after which my response is ok.
About my network
I have connectivity between site A and Site B which consists of five 64 kbps Leased lines bundled together with Multilink PPP
My configuration is shown below
End A
interface multilink 1
ip address x.x.x.x x.x.x.x
ppp multilink fragment-delay 20
ppp multilink interleave
ppp multilink
multilink-group 1
int Ser 2/0
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
int Ser 2/1
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
int Ser 2/2
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
int Ser 2/3
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
int Ser 2/4
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
End B
interface multilink 1
ip address ip address x.x.x.x x.x.x.x
ppp multilink fragment-delay 20
ppp multilink interleave
ppp multilink
multilink-group 1
interface S 2/0:1
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
interface S 2/0:11
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
interface S 2/0:25
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
interface S 2/0:4
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1
interface S 2/0:6
bandwidth 64
no ip address
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
no ip mroute-cache
no fair-queue
ppp multilink
multilink-group 1

pls find the output of show command
END A #sh int multilink 5
Multilink5 is up, line protocol is up
Hardware is multilink group interface
Description: ***Multilink to End B ***
Internet address is 192.26.0.162/30
MTU 1500 bytes, BW 320 Kbit, DLY 100000 usec,
reliability 255/255, txload 2/255, rxload 1/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
DTR is pulsed for 2 seconds on reset
LCP Open, multilink Open
Open: IPCP, CDPCP
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 19:55:13
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 2000 bits/sec, 4 packets/sec
5 minute output rate 3000 bits/sec, 4 packets/sec
309478 packets input, 58763590 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
1492 input errors, 0 CRC, 1492 frame, 0 overrun, 0 ignored, 0 abort
290606 packets output, 32728691 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
END A #sh ppp multilink
Multilink5, bundle name is End B
Bundle up for 22:06:31
493 lost fragments, 162050 reordered, 0 unassigned
999 discarded, 0 lost received, 3/255 load
0xAE5E6 received sequence, 0x69F6B sent sequence
Member links: 5 active, 0 inactive (max not set, min not set)
Se2/0, since 20:07:34, last rcvd seq 0AE5E1, 160 weight, 152 frag size
Se2/2, since 20:04:45, last rcvd seq 0AE5E2, 160 weight, 152 frag size
Se2/3, since 20:04:07, last rcvd seq 0AE5E3, 160 weight, 152 frag size
Se2/5, since 20:03:24, last rcvd seq 0AE5E4, 160 weight, 152 frag size
Se2/1, since 19:57:12, last rcvd seq 0AE5E5, 160 weight, 152 frag size
Am getting 1400 input errors in last 19 hours on multilink interface, also less than 100 input errors on member serial interfacs.Also am not loosing any link member.

MPLS TE with Multilink PPP failed

I have a problem setting MPLS TE in multilink PPP.
I setup 2xe1 PE to P connection using multilink PPP. Configuration for MPLS TE had been completely setup.
Tunnel MPLS was terminated at interface multilink at both end and also the rsvp had been attached to these interfaces.
PE1 ==== MPLS CORE --- PE2
The configuration seems like this:
mpls traffic-eng tunnels
interface Tunnel100
ip unnumbered Loopback0
tunnel destination 103.23.4.2 tunnel mode mpls traffic-eng
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng priority 0 0
tunnel mpls traffic-eng bandwidth 100
tunnel mpls traffic-eng path-option 2 dynamic
tunnel mpls traffic-eng record-route
interface Multilink20
description MultiLink to 7513 Gandul
ip address 103.23.4.13 255.255.255.252
ip ospf authentication-key 7 xxxxx
ip ospf hello-interval 5
ip ospf dead-interval 15
mpls label protocol ldp
mpls traffic-eng tunnels
tag-switching mtu 1512
tag-switching ip
ppp multilink
ppp multilink interleave
no ppp multilink fragmentation
multilink-group 20
ip rsvp bandwidth
end
interface Serial3/0:0
no ip address
ip load-sharing per-packet
encapsulation ppp
fair-queue 64 16 48
ppp multilink
multilink-group 20
interface Serial3/1:0
no ip address
ip load-sharing per-packet
encapsulation ppp
ppp multilink
multilink-group 20
With this config the signalling stay down.
Name: PE-CLG-72_t100 (Tunnel100) Destination: 103.23.4.2
Status:
Admin: up Oper: down Path: not valid Signalling: Down
path option 2, type dynamic
Config Parameters:
Bandwidth: 100 kbps (Global) Priority: 0 0 Affinity: 0x0/0xFFFF
Metric Type: TE (default)
AutoRoute: enabled LockDown: disabled Loadshare: 100 bw-based
auto-bw: disabled
Shortest Unconstrained Path Info:
Path Weight: UNKNOWN
Explicit Route: UNKNOWN
History:
Tunnel:
Time since created: 1 hours, 4 minutes
Path Option 2:
Last Error: PCALC:: Local system ID has not been set
Thnks for any response.

hi ,
i have been troubleshooting the same issue for the last 2 days , i go the same message
*Mar 2 02:06:34.973: TE-PCALC_PATH: get_path: system_id not initialized!
R6#show mpls traffic-eng tunnels
Name: R6_t1                               (Tunnel1) Destination: 1.1.1.1
Status:
    Admin: up         Oper: down   Path: not valid   Signalling: Down
    path option 10, type dynamic
Config Parameters:
    Bandwidth: 0        kbps (Global) Priority: 7 7   Affinity: 0x0/0xFFFF
    Metric Type: TE (default)
    AutoRoute: disabled LockDown: disabled Loadshare: 0        bw-based
    auto-bw: disabled
History:
    Tunnel:
      Time since created: 1 days, 17 minutes
    Path Option 10:
      Last Error: PCALC:: Local system ID has not been set
R6#
i am using ISIS as routing protocol , I dont know if is a bug with GNS3 or something is wrong with my config wich i dont think so !!
can anybody help me please !

Problem in calling BRI from PRI

Hi,
I am having problem in calling BRI from PRI. I am getting below message while debugging. Also note that calling from BRI to PRI is successful.
Mar 2 23:38:22: ISDN BR0/0 Q931: RX <- SETUP pd = 8 callref = 0x04
Sending Complete
Bearer Capability i = 0x8890
Standard = CCITT
Transer Capability = Unrestricted Digital
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x89
Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band info
Calling Party Number i = 0x2183, '1726601501'
Plan:ISDN, Type:National
*Mar 2 23:38:22: ISDN BR0/0:1: Incoming call rejected, unbindable
*Mar 2 23:38:22: ISDN BR0/0 **ERROR**: host_incoming_call: DIALER ERROR 0x1: b channel 0, call id 0x15E
*Mar 2 23:38:22: ISDN BR0/0 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x84
Cause i = 0x8095 - Call rejected
Pls help me.
Anis
9229109694

Dear Dharmesh,
Can u pls explain where to enable PPP Multilink.
Dear p.bevilacqua ,
I did what u told (configure "ppp chap username" under dialer interface), but the problem is same.
Anis

Callback problem

hi!
can any onr help me with a callback problem. Pc dialing into router via ISDN doesnt work with callback but works without it.

modem country mica south-africa
aaa new-model
aaa authentication ppp default group radius local
aaa authorization exec default local group radius
aaa authorization network default local group radius
aaa accounting network default start-stop group radius
aaa session-id common
ip subnet-zero
ip cef
no ftp-server write-enable
async-bootp dns-server 192.168.101.2 192.168.101.3
async-bootp nbns-server 192.168.101.2 192.168.101.3
isdn switch-type basic-net3
chat-script callback ABORT ERROR ABORT BUSY "" "ATDT\T" TIMEOUT 30 "CONNECT" \c
chat-script offhook "" "ATH1" OK
modemcap entry 3com_usr:MSC=&F1S0=1
interface FastEthernet0/0
ip address 192.168.254.250 255.255.255.0
no ip redirects
no ip unreachables
duplex auto
speed auto
interface FastEthernet0/1
ip address 192.168.100.28 255.255.255.0
no ip redirects
no ip unreachables
duplex auto
speed auto
interface BRI2/0
no ip address
encapsulation ppp
dialer rotary-group 0
dialer-group 1
isdn switch-type basic-net3
isdn incoming-voice modem
isdn skipsend-idverify
no keepalive
ppp authentication pap chap ms-chap
interface BRI2/1
no ip address
encapsulation ppp
dialer rotary-group 0
dialer-group 1
isdn switch-type basic-net3
isdn incoming-voice modem
no keepalive
ppp authentication pap chap ms-chap
interface BRI2/2
no ip address
encapsulation ppp
dialer rotary-group 0
dialer-group 1
isdn switch-type basic-net3
isdn incoming-voice modem
no keepalive
ppp authentication pap chap ms-chap
interface BRI2/3
no ip address
encapsulation ppp
dialer rotary-group 0
dialer-group 1
isdn switch-type basic-net3
isdn incoming-voice modem
no keepalive
ppp authentication pap chap ms-chap
interface BRI2/4
no ip address
encapsulation ppp
dialer rotary-group 0
dialer-group 1
isdn switch-type basic-net3
isdn incoming-voice modem
no keepalive
ppp authentication pap chap ms-chap
interface BRI2/5
no ip address
encapsulation ppp
dialer rotary-group 0
dialer-group 1
isdn switch-type basic-net3
isdn incoming-voice modem
no keepalive
ppp authentication pap chap ms-chap
interface BRI2/6
no ip address
isdn switch-type basic-net3
interface BRI2/7
no ip address
isdn switch-type basic-net3
interface Group-Async1
ip unnumbered FastEthernet0/1
encapsulation ppp
no ip route-cache cef
no ip route-cache
no ip mroute-cache
dialer in-band
dialer idle-timeout 900
dialer-group 1
async dynamic routing
async mode interactive
peer default ip address pool RAS
ppp max-bad-auth 3
ppp callback accept
ppp authentication ms-chap-v2
group-range 33 50
hold-queue 10 in
hold-queue 20 out
interface Dialer0
ip unnumbered FastEthernet0/0
encapsulation ppp
no ip route-cache cef
no ip route-cache
no ip mroute-cache
dialer in-band
dialer idle-timeout 900
dialer-group 1
peer default ip address pool RAS
ppp authentication ms-chap-v2
ppp multilink
ppp callback accept
hold-queue 10 in
hold-queue 20 out
ip local pool RAS 192.168.103.230 192.168.103.254
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.254.1
ip http server
dialer-list 1 protocol ip permit
radius-server host 192.168.101.61 auth-port 1645 acct-port 1646
radius-server key xxx
radius-server vsa send authentication
line con 0
password xxx
line 33 50
session-timeout 10
script modem-off-hook offhook
script callback callback
modem InOut
modem autoconfigure discovery
autoselect during-login
autoselect ppp
line 51 62
line aux 0
line vty 0 4
password xxx
end

Troubleshooting Multilink Group (Serial)

Hi,
I have been asked to look at a colleague's problem and I haven't touched multilink in a while, so when I looked at the initial output form various 'show' commands I think there still might be an issue. He has indicated that everything is working fine now but I have attached the output of the show command after this had been mentioned. With one of the serial interfaces as 'Down Down' and also showing as one member link as 'active' and one as 'inactive'. Any pointers would be appreciated, as I cannot help but think that only one circuit is working.
Attached is the sh int for both serial interfaces, multilink interface and sh ppp multilink. Also attached is the config for the router.
Thanks in advance.

I agree that you seem to have a problem.
(BTW, There is something that does not quite add up in the listings, because your show run show both serial links in shutdown.)
Nevertheless, the most useful output would be to do a debug ppp multilink and debug ppp negotiation, and then bounce the interface that is not joining the bundle correctly, and see what comes out.
Also, if you shut down 0/2/1 and try and bounce 0/2/0, does 0/2/0 then join the multilink bundle OK?
Kevin Dorrell
Luxembourg

Cisco 804 and ISDN problems

I've got a problem that I could use some input on. We have several
Cisco 804 routers that we use for our teleworkers at home. They have
standard PC's that connect to the ethernet interface on the router
and to a Siemens phone with Optiset teleworking adaptor via 9 pin
serial cable and COM1 port on the PC.
On the router, we are running the BRI0 and Dialer1 interface with
PPP multilink. I can get the router connect to our DC here in
Seattle without problem. The problem comes while trying to use
Siemens callbridge.
With the phone connected to POTS2 and not signed into callbridge, I
can pickup the handset and get a dial tone. I then sign into
callbridge which takes the phone (via the serial cable) and connects
it to a server (over Ethernet) here in our office in Seattle. This
succeeds, however when we then go off hook while signed into
callbridge, we don't get a dial tone.
I should step back for a second and state then when not signed into
CB, and pick up the phone, we'll see the router release BRI0:2 and
give it a voice (dial tone) signal. When signed into CB, this does
not happen. We are also seeing the error below:
ISDN BRI0: isdn_is_bchannel_available: No Free B-channels
I've got ISDN Events and q931 debugging on and am not seeing anything beside the error above that would point to a problem. Cisco has a 20 page debug all that they are going through to search for an answer.
Any chance that anyone has worked with this before?
Thanks,
James

I would say that this is because the router is connected over 1 b channel to your seattle office and then when you log in with your callbridge you are using the second b channel so when you goto use the phone the router simply has no more b channels to use to carry your phone call which is why you get no dial tone.As BRI ONLY HAS 2*64Kbits b channels and 16Kbits d channel(signalling)

Ppp multilink problem

Similar Messages

Maybe you are looking for