From: Paul Young (tsungdapaulyoung@xxxxxxxxx)
Date: Mon Aug 27 2001 - 00:59:04 GMT-3
I'm was working on ECP1 Exercise 7 Transparent
Bridging, Spanning Tree & IRB but couldn't get ping
to work from Frame Switch to R3's BVI IP address as
described in the lab.
Irb & Transparent bridging
(bridge 1 protocol ieee, bridge-group 1) are on all
routers (R1, R2, R3, R4's serial plus ethernet
interface). IP addresses configured on Eth0 of the
Frame switch & BVI1 on R3 only. Bridge 1 route ip
also configured on R3 (where BVI1 is). No Transparent
bridging statements or irb is configured on the Frame
Switch router (physical IP assigned to Ethernet
interface only).
Frame configuration as follows:
R1 has serial sub-interface s0/0.123 (multi-point)
with 3 frame map bridge DLCI# broadcast statements as
well as bridge-group 1 statement. R2, R3, R4 each has
a physical serial frame configuration (s0 with no
sub-interface) and 1 frame map bridge DLCI# broadcast
plus bridge-group 1 at each router (r2, r3, r4) going
back to R1 (no IP addresses are assigned to serial or
ethernet interface as mentioned, except on the Frame
Switch router).
When trying to ping R3 BVI1's interface from the frame
switch router with debug ip & icmp enabled, it shows
encap fail message.
Anyone has any idea or suggestions of getting this to
work is much appreciate it, thanks.
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