[FROG] IPv6 bgp not working properly

[Patrick Boutilier]

On 1/8/20 8:07 PM, Patrick Boutilier wrote:
> On 1/8/20 9:49 AM, Tim Bray wrote:
>> On 08/01/2020 13:42, Patrick Boutilier wrote:
>>> Having troubles with IPv6 and bgp. Traffic comes back on the 
>>> interface (eth4.431) connected to the bgp peer but traffic won't pass 
>>> through the kernel to the interface the ping is coming from. Also I 
>>> can see 4 extra ping replies with tcpdump. Works fine on old Quagga 
>>> bgpd.
>>>
>>> Any ideas what could be going on?
>>>
>>>
>> Sanity check
>>
>> more /proc/sys/net/ipv6/conf/*/forwarding
>>
>> and check you have all 1s
>>
>>
>> (TBH, working IPv6 is the main reason to use FRR over Quagga)
>>
>>
>> Tim
>>
>>
> 
> All 1. Lots of vlan interfaces....
> 
> 
> # cat /proc/sys/net/ipv6/conf/*/forwarding
> 1

<snip>
Turns out the issue was that the frr server couldn't route back to 
2620:8b:8000:0:7064:ee:ab4c:621 without adding a static route. Static 
route was not needed with old Quagga so I will investigate why. All 
working now with the static route in place.















> _______________________________________________
> frog mailing list
> frog at lists.frrouting.org
> https://lists.frrouting.org/listinfo/frog
> 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: boutilpj.vcf
Type: text/x-vcard
Size: 286 bytes
Desc: not available
URL: <http://lists.frrouting.org/pipermail/frog/attachments/20200111/5cacbdab/attachment.vcf>