RE: Dumb Trunking Question

From: Guyler, Rik (rguyler@shp-dayton.org)
Date: Thu May 10 2007 - 08:24:20 ART


Chris, why don't you post the configs of the interfaces (physical and subs).
That's always helpful, especially when you don't get any "I've seen that
before" responses.

Rik

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Chris Riling
Sent: Wednesday, May 09, 2007 12:41 AM
To: Cisco certification
Subject: Dumb Trunking Question

Sorry for the CCNA level question, but I'm tired and I'm sure it happens to
all of us at some point... Office number 1 has an 1811 with integrated 8
port switch; Office 2 has an 871. There is a dot1q trunk between fa3 on the
871, and fa2 on the 1811. Both have SVI's for VLAN1 with IP's assigned in
the same /24 (192.168.1.0/24). There is also a VLAN 100 existing on both
routers, with an SVI on each, which is part of the same /29. Both VLANs are
allowed from each side of the trunk, and when I just do the normal
"switchport trunk encap dot1q" and "switchport mode trunk" on each end, I
can't ping across the trunk to either SVI. If I set the native VLAN to 100
on each end, I can ping the SVI's and machines on VLAN 100, but I still
can't ping the SVI's on VLAN 1... any ideas?

Thanks,
Chris



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