From: ccie2be (ccie2be@nyc.rr.com)
Date: Tue Jul 29 2003 - 13:36:06 GMT-3
When using the 2ndary ip address (10.2.6.6 on R6's int E0), R6 doesn't form
a neighbor relationship with R7 which is using ip addr 10.2.6.7 on it's int
E0. R6 shows R7 as a neighbor but R7 doesn't see R6 as a neighbor.
I tried using the neighbor command on R7 but that didn't work. Is this
possibly a IOS version issue? R7 is using IOS 12.0 but R6 is running 12.1.
Or, is there a special command I need to use?
R6 and R7 can ping each other. Thanks, Raj
----- Original Message -----
From: "Gyuri Gabor" <Gabor.Gyori@lnx.hu>
To: "ccie2be" <ccie2be@nyc.rr.com>
Sent: Tuesday, July 29, 2003 11:48 AM
Subject: RE: Can ping to a 2ndary addr but not from 2ndary addr
Routers (and hosts as well) allways use their primary IP address of their
outgoing interface as source address when originating packet.
When You ping 10.2.6.7 from R6, the source IP address of the echo request
packet is
172.16.136.6. This address does not appear in routing table of R7 so it
drops the reply packet.
Gabor
-----Original Message-----
From: ccie2be [mailto:ccie2be@nyc.rr.com]
Sent: Tuesday, July 29, 2003 5:40 PM
To: Group Study
Subject: Can ping to a 2ndary addr but not from 2ndary addr
Hi,
This seems very strange to me.
I have 2 routers R6 and R7 connected via a Cat5k Ethernet. Both routers int
E0 are in vlan 2,
R7 config:
int e0
ip addr 10.2.6.7 255.255.254.0
R6 config:
int E0
ip addr 10.2.6.6 255.255.254.0 secondary
ip addr 172.16.136.6 255.255.255.0
The route table of both routers shows an entry for 10.2.6.0/23 and both int
are up up when I do a show int e0.
From R7 I can ping 10.2.6.6 but from R6 I can't ping 10.2.6.7
Can anybody explain why this is and what I should about it?
I'd very much would appreciate it. Thanks, Raj
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