nanog mailing list archives
Re: ipv6 connectivity bugs
From: Dave Bell <me () geordish org>
Date: Mon, 19 Oct 2015 12:46:07 +0100
Do you have anything in the way of COPP on either box that may be dropping packets? I would imagine the issue is likely to be on the AS1k end. Additionally I see you have different interface speeds at each side. Is the thing in the middle at fault? ND is done using multicast. One final thing is attempt to ping across the link local addresses. Make you you set the source address correctly. Regards, Dave On 19 October 2015 at 12:39, Mike <mike-nanog () tiedyenetworks com> wrote:
Hello, I have a 7201 and an ASR1000 and they share a link and run ipv4 and bgp over it no problem. I am experimenting and have now added some static ipv6 configuration, and I can't seem to ping across the link. The issue looks like one side us advertising prefixes correctly and the other isn't. Here's my interface configs: ASR1000: interface TenGigabitEthernet0/1/0.110025 encapsulation dot1Q 25 second-dot1q 11 ip address x.x.x.1 255.255.255.248 ipv6 address xxxx:yyyy::1:1/126 end 7201: interface GigabitEthernet0/0.110025 encapsulation dot1Q 25 second-dot1q 11 ip address x.x.x.2 255.255.255.248 ipv6 address xxxx:yyyy::1:2/126 end When I try pinging 7201 from the asr1000, no response. I do see a neighbor entry on the asr1000: sh ipv6 neighbors IPv6 Address Age Link-layer Addr State Interface xxxx:yyyy::1:2 0 xxxx.yyyy.8e1b REACH Te0/1/0.110025 FE80::xxxx:yyyy:FE49:8E1B 0 xxxx.yyyy.8e1b REACH Te0/1/0.110025 On the 7201 however, there seems to only be the link local address neighbor entry for the asr1000: sh ipv6 neighbors IPv6 Address Age Link-layer Addr State Interface FE80::xxxx:yyyy:FE2D:D190 0 xxxx.yyyy.d190 STALE Gi0/0.110025 Can anyone spot what I am doing wrong? Mike-
Current thread:
- ipv6 connectivity bugs Mike (Oct 19)
- Re: ipv6 connectivity bugs Dave Bell (Oct 19)
- Re: ipv6 connectivity bugs Mike (Oct 19)
- Re: ipv6 connectivity bugs Mark Tinka (Oct 19)
- Re: ipv6 connectivity bugs Mike (Oct 19)
- Re: ipv6 connectivity bugs Mark Tinka (Oct 19)
- Re: ipv6 connectivity bugs Mike (Oct 20)
- Re: ipv6 connectivity bugs Mike (Oct 19)
- Re: ipv6 connectivity bugs Dave Bell (Oct 19)