Hello, where is my mistake? Static routing between 2001:db8:1::/64 and 2001:db8:1:a::/64 (configured outside of BIRD) works. # r1 (2001:db8:1::1/64) protocol bgp r2 { local as 4200000000; neighbor range 2001:db8:1::/50 as 4200000001; # Never comes up # neighbor 2001:db8:1:a::1 as 4200000001; # Just works... source address 2001:db8:1::1; multihop 2; } # r2 (2001:db8:1:a::1/64) protocol bgp r1 { local as 4200000001; neighbor 2001:db8:1::1 as 4200000000; multihop 2; } Both systems are BIRD 2.0.7. Regards, Robert
On Thu, Nov 12, 2020 at 03:15:17AM +0100, Robert Scheck wrote:
Hello,
where is my mistake? Static routing between 2001:db8:1::/64 and 2001:db8:1:a::/64 (configured outside of BIRD) works.
Hello Could you try add 'passive' to the working example to see whether the issue is related to one-way establishment, or neighbor-range mode? Also, do you have any messages in logs related to that (esp. if you enable debug logging)? -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
Hello Ondrej, On Sun, 15 Nov 2020, Ondrej Zajicek wrote:
Could you try add 'passive' to the working example to see whether the issue is related to one-way establishment, or neighbor-range mode?
yes, adding 'passive' to the working example keeps it still working.
Also, do you have any messages in logs related to that (esp. if you enable debug logging)?
Not really. Having... log syslog all; debug protocols all; ...on both, r1 and r2, leads on r2 to: bird[18503]: Started bird[18503]: r1: Started bird[18503]: r1: Connect delayed by 5 bird[18503]: r1: Connecting to 2001:db8:1::1 from local address :: On r1, there is nothing related to r2, while I am seeing via tcpdump inbound BGP connections from r2 (being unanswered). However, running "telnet r1 179" from r2 leads at least to a BGP protocol related reply (within the telnet connection) from r1. Regards, Robert
On Tue, Nov 17, 2020 at 12:37:47AM +0100, Robert Scheck wrote:
Also, do you have any messages in logs related to that (esp. if you enable debug logging)?
bird[18503]: Started bird[18503]: r1: Started bird[18503]: r1: Connect delayed by 5 bird[18503]: r1: Connecting to 2001:db8:1::1 from local address ::
On r1, there is nothing related to r2, while I am seeing via tcpdump inbound BGP connections from r2 (being unanswered). However, running "telnet r1 179" from r2 leads at least to a BGP protocol related reply (within the telnet connection) from r1.
Hello If you seeing inbound BGP connection from r2 unanswered, while telnet is accepted and (generated log message), are there any difference between src/dst addresses of BGP connection and telnet connection? -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
participants (2)
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Ondrej Zajicek -
Robert Scheck