From: Elias Chari (elias.chari@gmail.com)
Date: Sat Mar 17 2007 - 22:33:51 ART
I'm pretty sure this is because you specified ipv6 as the transport
protocol.
remove the command "tunnel mode gre ipv6" and see what happens.
-- Regards, Elias CCIE#17354On 3/18/07, Scott Morris <swm@emanon.com> wrote: > > I don't remember it working in this fashion... Perhaps it's late at night > and my brain isn't firing correctly, but I always thought the whole point > of > "tunnel mode gre ipv6" was that IPv6 was the transport for setting up the > tunnel. > > I'm not in front of equipment at the moment, so try this out and see > whether > I'm nuts or not. (Which I'm hoping isn't the case, at least not for this! > (grin)) > > > Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE > #153, CISSP, et al. > CCSI/JNCI-M/JNCI-J > IPexpert VP - Curriculum Development > IPexpert Sr. Technical Instructor > smorris@ipexpert.com > http://www.ipexpert.com > > > > -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of > Matt > Mullen > Sent: Saturday, March 17, 2007 4:21 PM > To: Cisco certification > Subject: GRE IPv6 > > Hi all, > > I am having an issue with getting an IPv6 over GRE tunnel to come up. As > soon as I enter the 'tunnel mode gre ipv6' command on the tunnel > interface, > the interface goes down and remains down. Here's the config: > > R1 > > interface FastEthernet0/0 > ip address 155.1.10.1 255.255.255.0 > ipv6 address 2001:1::1/64 > > interface Tunnel14 > no ip address > ipv6 address 2001:14::1/64 > tunnel source FastEthernet0/0 > tunnel destination 155.1.4.4 > tunnel mode gre ipv6 > > R4 > > interface FastEthernet0/0 > ip address 155.1.4.4 255.255.255.0 > ipv6 address 2001:4::4/64 > > interface Tunnel14 > no ip address > ipv6 address 2001:14::4/64 > tunnel source FastEthernet0/0 > tunnel destination 155.1.10.1 > tunnel mode gre ipv6 > > I also tried defining loopback interfaces instead of using the physical > interfaces for tunnel source/destination, but get the same result. The > code is 12.4(10b). Is anyone else seeing this behavior? > > Thanks, > Matt > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
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