From: theKonqueror (thekonqueror@gmail.com)
Date: Tue Apr 08 2008 - 06:21:46 ART
Tunnel config is as follows:
-- interface Tunnel0 ip unnumbered Serial1/0 ip pim dense-mode tunnel source Serial1/0 tunnel destination 155.1.0.5 --I cannot add IP address to the tunnel as the rules mention "do not add new ip subnets". Also, if I disable pim from serial interface, ping works, but the task has mentioned to enable dense mode on serial interface of both routers.
On Tue, Apr 8, 2008 at 2:44 PM, Alexander Belov <abelov@technoserv.ru> wrote:
> Hello, > > What is exactly R4's and R5's tunnel configs? > I suppose You might need ip for tunnel source.... (instead of ip > unnumbered) > > Wbr, > Alex > > -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of > theKonqueror > Sent: Tuesday, April 08, 2008 12:45 PM > To: groupstudy > Subject: RPF failures on multicast over gre tunnel > > Hi, > > I am trying to configure simple multicast in dense mode on 2 routers. > > [R4]---------[R5] > > Both routers are connected via frame-relay with static L3 mapping without > broadcast command. > > ---- > R4#sh fram map > Serial1/0 (up): ip 155.1.0.5 dlci 405(0x195,0x6450), static, > CISCO, status defined, active > R4# > > R5#sh fram map > Serial1/0 (up): ip 155.1.0.4 dlci 504(0x1F8,0x7C80), static, > CISCO, status defined, active > R5# > ---- > > To make multicast work, I added a tunnel over serial interface on both > routers. > -- > interface Tunnel0 > ip unnumbered Serial1/0 > ip pim dense-mode > tunnel source Serial1/0 > tunnel destination 155.1.0.5 > -- > > R4 e0/0 has joined group 224.2.2.2. Now when I try to ping 224.2.2.2 from > R5, R4 shows RPF failures as the rpf path is S1/0. > > Even after adding mroute for rpf, incoming interface shows as S1/0 instead > of tunnel0. > > -- > ip mroute 155.1.0.5 255.255.255.255 Tunnel0 > -- > > -- > R4#sh ip mroute 224.2.2.2 | b 155 > (155.1.0.5, 224.2.2.2), 00:00:17/00:02:42, flags: L > Incoming interface: Serial1/0, RPF nbr 0.0.0.0 > Outgoing interface list: > Tunnel0, Forward/Dense, 00:00:17/00:00:00 > Ethernet0/0, Forward/Dense, 00:00:17/00:00:00 > > R4# > -- > > Is there something wrong with the config, or do I need additional steps to > make multicast work over tunnel? > > Thanks, > Rahul > > -- > Bugs can neither be created nor be removed from software by a developer. > They can only be converted from one form to another. The total number of > bugs in the software always remain constant. > > .}l}..}l}. > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html > > >
-- Bugs can neither be created nor be removed from software by a developer. They can only be converted from one form to another. The total number of bugs in the software always remain constant.
.}l}..}l}.
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