- Bird-users - Mailing Lists

bird 2.0.0 issues
by Radu Anghel 15 Dec '17

15 Dec '17

Hello, I just installed bird 2.0.0 on a test machine to try it out and I have some issues: (CentOS 7 / kernel 4.14.5-1.el7.elrepo.x86_64) 1) the kernel protcol sees no routes (both ipv4 and ipv6) and doesn't export any routes 2) each time I change the config and do a 'birdc conf' it resets all BGP sessions and logs bird: Cannot reconfigure channel XXX.ipv4 bird: Cannot remove channel XXX.ipv4 bird: Restarting protocol XXX 3) can't establish BGP with bird 1.6.3 if I have add paths on; on the session - 2.0.0 says: "BGP Error: Malformed attribute list" and 1.6.3: "Socket: Connection closed". add paths on; works between two bird 2.0.0. Could these be caused by kernel or *lib versions or are these bugs in bird? Thanks, Radu

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BIRD 2.0.0: RFC8097 extended communities and rpki-light
by Pier Carlo Chiodi 13 Dec '17

13 Dec '17

Hello, while I was running some tests on BIRD 2.0.0 I've noticed that the handling of RFC8097 extended communities is different from 1.6.3. Scenario: - AS10 announces a route to the route server; - the route server adds the (0x4300, 0, 1) ext community (RFC8097); - AS20 receives the route; - clients are always both on 1.6.3. This is the filter I'm using: filter from_client { bgp_ext_community.add((unknown 0x4300, 0, 1)); accept; } The results I get follow: - when 1.6.3 is used on the route server, BIRD treats the community strictly according to RFC4360: If a route has a non-transitivity extended community, then before advertising the route across the Autonomous System boundary the community SHOULD be removed from the route. - when 2.0.0 is used, the community is treated accordingly to draft-ietf-sidrops-route-server-rpki-light-02 and is propagated to the client. Since I didn't find any reference to RFC8097/rpki-light on the web site, I was wondering if I missed something or if this is the expected behaviour. Configs and 'show route' output attached. Bests, -- Pier Carlo Chiodi https://pierky.com

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BIRD Error
by k.abdalla＠q-ab.com 13 Dec '17

13 Dec '17

Hi all , It's my first time running BIRD instance and when I tried to run bird -c myfile.conf it gave below error : "bird: I found another BIRD running" Your help is much appreciated Thanks

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Version 2.0.0
by Ondrej Filip 11 Dec '17

11 Dec '17

Dear BIRD users, It took a long time, but it happened. Let me announce a new final version 2.0.0! Please test it and send some feedback. We will provide packages later. Ondrej Version 2.0.0 (2017-12-11) o Integrated IPv4 + IPv6 design o Support for MPLS next hops o Support for VPNv4 and VPNv6 networks o Microsecond timers infrastructure o Basic VRF support o Babel: Support for dual-stack IPv4/IPv6 o Babel: Many improvements and bugfixes o Major BGP protocol redesign o Full support for Multiprotocol BGP o BGP multicast support (SAFI 2) o BGP flowspec support (RFC 5575) o BGP with MPLS labels (RFC 3107) o BGP MPLS/VPN support (RFC 4364) o BGP 6PE - IPv6 NLRI over IPv4 MPLS (RFC 4798) o BGP IPv4 NLRI with an IPv6 Next Hop (RFC 5549) o BGP Confederations (RFC 5065) o BGP Shutdown communication (RFC 8203) o BGP: Allow exchanging LOCAL_PREF with eBGP peers o BGP: Allow to specify interface for regular sessions o OSPF: Support of address families in OSPFv3 o OSPF: Enable ECMP and Link detection by default o RAdv: Support for more specific routes (RFC 4191) o RAdv: Proper handling of prefix retraction o RIP: Enable ECMP and Link detection by default o Redesign of RPKI handling o New RPKI-Router protocol o Static: Minor overhaul o Static: Support for all new route types o Kenrel: Default Linux kernel metric changed to 32 o Kernel: Fix IPv6 ECMP handling with Linux 4.11+ o Update of show route command o BIRD client persistent history o New build system o Unit tests Notes: Tables are now defined with appropriate net type keyword. Protocols and tables are now connected by explicit channels, most related protocol options (table, import, export, ...) are now channel options. See doc/bird.conf.example2 for configuration examples. Some options were removed/replaced.

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Bird - hardware, vm.
by Mike Neo 10 Dec '17

10 Dec '17

Hi, I think about migration from old cisco 6500 to Bird for bgp (2 feeds, traffic 400Mb) Could you tell me, is possible to find the best practices doc? Which linux distro do you prefer for stability, security etc.? Is it good choice to install Bird as vmware vm? BR, Mike

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Need help for BIRD installation
by Pardeep Sharma 06 Dec '17

06 Dec '17

Hi Bird Experts, We are new in BIRD software installation and want to install in our ubuntu server machine. If someone guide us about the installation process of BIRD in ubuntu.. would be appreciated. Please mention the installation link, If you have.. Help would be appreciated@@@@@@ Thanks Pardeep

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Bird and ensuring preference of one route over another via OSPF.
by Anubis 04 Dec '17

04 Dec '17

Hi All, I have a network wherein there are two routers connected to a network and both participate in an OSPF area on the public side. I'm needing to ensure that only one router is maintained as the priority route and the other is excluded. I've tried setting the costs of the routes, but the 2nd router is still becoming priority. How can I achieve this to ensure R1 is priority and R2 isn't use as a valid route. Configs below. Thanks. Anubis. Simplified Diagram: (Internet) -R0----+-------(eth0)- R1 (10.1.0.253) -----------+ (Lan 10.1.0.0/16) | | | | +-------(eth0)- R2 (10.1.0.252) -----------+ R0 is showing R2 as the priority route for 10.1.0.0/16 If I shut down Bird on R2, R1 correctly becomes the main route. R1 Config: ============================================= protocol device { scan time 10; } protocol kernel { export all; scan time 15; } protocol static { import all; } protocol ospf { import all; export filter { ospf_metric1 = 1000; if source = RTS_STATIC then accept; else reject; }; area 0 { interface "eth0" { cost 5; type broadcast; hello 10; retransmit 2; wait 10; dead 40; }; interface "*" { cost 1000; stub; }; }; } R2 Config: ============================================= protocol device { scan time 10; } protocol kernel { export all; scan time 15; } protocol static { import all; } protocol ospf { import all; export filter { ospf_metric1 = 1500; if ( source = RTS_STATIC ) then if (net = 10.1.0.0/16 || net = 10.2.0.0/16 ) then reject "rejected route"; else { accept "accepted route"; } else { reject "not static route"; } }; area 0 { interface "eth0" { cost 15; type broadcast; hello 10; retransmit 2; wait 10; dead 40; }; interface "*" { cost 1500; stub; }; }; }

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Could bgp password include double quotation character "?
by Eugene Qian 01 Dec '17

01 Dec '17

Hi All, How could I include double quotation in bgp password? in my config file protocol bgp AS_64496 from ABC { description "BIRD BGP instance AS_64496"; multihop; neighbor x.y.z.3 as 65002; source address a.b.c.29; # What local address we use for the TCP connect password "a1s@"xyz"; import all; export where proto = "static_bgp"; } password "a1s@"xyz"; I tried to use \ to escape or use single quotation for password, the bird will give me this error /opt/bird/etc/bird.conf, line 30: syntax error What is the restriction on password? Thanks -Eugene

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OSPF: Cannot find next hop for LSA type
by Eugene M. Zheganin 24 Nov '17

24 Nov '17

Hi, Recenly I occasionally found that one can define the OSPF area twice, like area 0.0.0.1 { interface "eth0"; } area 0.0.0.1 { interface "eth1"; } And this obviously erroneous configuration passes the bird configuration check, and starts causing unpredictable and wierd problems, including the one mentioned in subject. Since bird doesn't seem to have a bug tracker, this list seems to be an appropriate place to report this. Thanks. Eugene.

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BGP AS Path Filter
by Shurshuka 16 Nov '17

16 Nov '17

Hello, I am newbie in Bird & BGP so pardon my question: I have server and my own AS/IP's (/24). I get default from my provider. My provider has a lot of upstreams (different IP transit providers with there own AS). I want my AS/routes to be announce only from some providers upstreams. My provider doesn't provide any self-service BGP communities for that. As I understood, I can do this thing with BGP AS Path Filter (Default is OK for this? Or Full View required?). What filter I need to use (import/export)? I tried to use this filter, but it failed: > import filter { > > if (bgp_path ~ [= * IP_TRANSIT_PROVIDER_AS_1 PROVIDER_AS MY_AS =]) || (bgp_path ~ [= * IP_TRANSIT_PROVIDER_AS_2 PROVIDER_AS MY_AS =]) then { > > accept; > > } else reject; > }; Could you please to answer my questions and to tell in what direction to move on? Thanks.

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