Re: Inject default route via OSPF, but only to specific OSPF peer and contingent on BGP session established

2024-01-10 Thread Lukas Haase via Bird-users
imagine. The fact that this sounds so troubling makes me think: Am I doing something conceptually wrong? How would one implement my scenario? > > On 2024-01-10 00:28, Lukas Haase via Bird-users wrote: > > Hi, > > > > I have two "border gateways"; each establishes a BGP

Re: Exporting a larger prefix if a smaller prefix is being exported

2024-01-13 Thread Lukas Haase via Bird-users
just export via a filter like this? export filter { if (net ~ [192.0.2.0/24{25,32}]) then { accept; } reject; } Thanks, Luke > You can also make some external daemon watching your kernel routes > and adding/deleting the aggregate route to the table. > > R

Re: Exporting a larger prefix if a smaller prefix is being exported

2024-01-15 Thread Lukas Haase via Bird-users
gt; { > > > > route 192.0.2.0/24 via 192.0.2.209; > > > > route 192.0.2.0/24 via 192.0.2.250; > > > > route 192.0.2.0/24 via 192.0.2.285; > > > > route 192.0.2.0/24 via 192.0.2.254; > > > > route 192.0.2.0/24 via 192.0.2.177; >

Aw: Re: Exporting a larger prefix if a smaller prefix is being exported

2024-01-14 Thread Lukas Haase via Bird-users
main > table and reachability tested in bgp export filter for example. > > > ipv4 table aggr; > > protocol static prefix_aggregation > { > ipv4 { table aggr4; }; > route 192.0.2.0/24 recursive 192.0.2.209; > ... > } > > protocol pipe pip

BFD sessions with FFR (VyOS) won't establish

2024-01-16 Thread Lukas Haase via Bird-users
Hello, My BFD session between bird work fine but the ones but the ones to VyOS (which uses FFR) just won't connect: # birdc show bfd sess BIRD 2.0.8 ready. bfd1: IP address Interface State Since Interval Timeout 172.20.215.131 --- Init 10:39:14.183 1.000 10.000 172.20.215.130 --- Up

Re: BFD sessions with FFR (VyOS) won't establish

2024-01-17 Thread Lukas Haase via Bird-users
the case, but I would try that first. > > Regards, > Alexander > > On Tue, Jan 16, 2024 at 9:15 AM Lukas Haase via Bird-users > wrote: > > > > Hello, > > > > My BFD session between bird work fine but the ones but the ones to VyOS > > (which us

How to inject default route only to specific peer contingent on BGP session

2024-01-09 Thread Lukas Haase via Bird-users
Hi, I have two "border gateways" running bird; each establishes a BGP session to the outside world. An internal router connects to each of the border gateways and uses OSPF to exchange routes. (Note, other OSPF links may exist as well). Both border gateways act as default gateways for the

Inject default route via OSPF, but only to specific OSPF peer and contingent on BGP session established

2024-01-09 Thread Lukas Haase via Bird-users
Hi, I have two "border gateways"; each establishes a BGP session to the outside world. An internal router connects to each of the border gateways and uses OSPF to exchange routes. (Note, other OSPF links may exist as well). Both border gateways act as default gateways for the internal router.

Exporting a larger prefix if a smaller prefix is being exported

2024-01-12 Thread Lukas Haase via Bird-users
Hi, Is is somehow possible to export a larger prefix if one or more sub-prefixes (subnets) are exported ... but also remove that prefix if no smaller subnet exist any more? Example: As soon as 192.0.2.44/32 or 192.0.2.208/28 (or any other prefix inside 192.0.2.0/24) is exported via eBGP, also