From: Vytautas Valancius (valas@mail.lt)
Date: Sun Nov 21 2004 - 11:50:04 GMT-3
Hi Group,
Can anybody confirm that they succeed in running direct OSPF virtual-link
over ip
unnumebered? Maybe it is not possible to do and I'm sticking to this problem
too much.
Cheers,
Vytautas Valancius
----- Original Message -----
From: "Vytautas Valancius" <valas@mail.lt>
To: <ccielab@groupstudy.com>
Sent: Sunday, November 21, 2004 12:51 AM
Subject: Re: virtual links over ip unnumbered
> Hi,
>
> Below are super simple configurations for two routers connected with
serial
> line.
>
> Virtual links are down even in this simple config. Network 172.16.100.0/24
> is not in R1 because of that. As I said more interesting things happen
when
> we have complex ISDN setup, but I guess before debuging that one should
> understand why this simple configuration is not working...
>
> There are no error messages. 'debug ip ospf adj' does not show any output.
> 'debug ip ospf packet' behaves as there is no virtual link configured - no
> packets are sent ir received to establish it.
>
> R1:
> !
> interface Loopback1
> description area 0
> ip address 172.16.1.1 255.255.255.0
> ip ospf network point-to-point
> !
> interface Loopback101
> ip address 172.16.101.1 255.255.255.0
> ip ospf network point-to-point
> !
> interface Serial4/6
> ip unnumbered Loopback101
> !
> router ospf 1
> router-id 172.16.101.1
> log-adjacency-changes
> area 16 virtual-link 172.16.106.1
> passive-interface Loopback1
> network 172.16.1.1 0.0.0.0 area 0
> network 172.16.101.1 0.0.0.0 area 16
> !
>
> R1#sh ip ospf nei
>
> Neighbor ID Pri State Dead Time Address
Interface
> 172.16.106.1 1 FULL/ - 00:00:39 172.16.106.1
Serial4/6
>
> R1#sh ip ospf virtual-links
> Virtual Link OSPF_VL0 to router 172.16.106.1 is down
> Run as demand circuit
> DoNotAge LSA allowed.
> Transit area 16, Cost of using 65535
> Transmit Delay is 1 sec, State DOWN,
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>
> R1#ping 172.16.106.1
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 172.16.106.1, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 16/16/20 ms
> R1#sh ip ro
> Gateway of last resort is not set
>
> 172.16.0.0/24 is subnetted, 3 subnets
> C 172.16.1.0 is directly connected, Loopback1
> O 172.16.106.0 [110/782] via 172.16.106.1, 00:04:47, Serial4/6
> C 172.16.101.0 is directly connected, Loopback101
>
>
> R6 output:
> !
> interface Loopback100
> description area 100
> ip address 172.16.100.1 255.255.255.0
> ip ospf network point-to-point
> !
> interface Loopback106
> ip address 172.16.106.1 255.255.255.0
> ip ospf network point-to-point
> !
> interface Serial0
> ip unnumbered Loopback106
> no fair-queue
> clockrate 125000
> !
> interface Serial1
> no ip address
> shutdown
> !
> router ospf 1
> router-id 172.16.106.1
> log-adjacency-changes
> area 16 virtual-link 172.16.101.1
> network 172.16.100.1 0.0.0.0 area 100
> network 172.16.106.1 0.0.0.0 area 16
> !
> R6#sh ip ospf nei
>
> Neighbor ID Pri State Dead Time Address
Interface
> 172.16.101.1 1 FULL/ - 00:00:33 172.16.101.1 Serial0
> R6#
> R6#sh ip os
> R6#sh ip ospf vir
> Virtual Link OSPF_VL0 to router 172.16.101.1 is down
> Run as demand circuit
> DoNotAge LSA allowed.
> Transit area 16, Cost of using 65535
> Transmit Delay is 1 sec, State DOWN,
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>
> R6#ping 172.16.101.1
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 172.16.101.1, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 16/16/20 ms
> R6#
> R6#sh ip ro
>
> Gateway of last resort is not set
>
> 172.16.0.0/24 is subnetted, 4 subnets
> O IA 172.16.1.0 [110/65] via 172.16.101.1, 00:04:34, Serial0
> C 172.16.106.0 is directly connected, Loopback106
> C 172.16.100.0 is directly connected, Loopback100
> O 172.16.101.0 [110/65] via 172.16.101.1, 00:04:44, Serial0
>
>
> ----- Original Message -----
> From: "ccie2be" <ccie2be@nyc.rr.com>
> To: "Vytautas Valancius" <valas@mail.lt>; <ccielab@groupstudy.com>
> Sent: Sunday, November 21, 2004 12:59 AM
> Subject: Re: virtual links over ip unnumbered
>
>
> > Could you post your configuration? Including show command output? And,
> > error messages?
> > ----- Original Message -----
> > From: "Vytautas Valancius" <valas@mail.lt>
> > To: <ccielab@groupstudy.com>
> > Sent: Saturday, November 20, 2004 2:37 PM
> > Subject: virtual links over ip unnumbered
> >
> >
> > > Hi Group,
> > >
> > > Does OSPF virtual-link work over link with ip unnumbered on both
sides?
> > >
> > > I did not succed to run it in pretty basic setups. Moreover, if I run
it
> > > over unnumbered ISDN, demand-circuit feature is not working. Virtual
> link
> > is
> > > UP only on one side and it keeps sending OSPF messages that brings
ISDN
> up
> > > imediatelly after it goes down.
> > >
> > > Any comments are welcomed!
> > >
> > > valas
> > >
> > >
This archive was generated by hypermail 2.1.4 : Thu Dec 02 2004 - 06:57:48 GMT-3