- Bird-users - Mailing Lists

Bird2.0.4 - make errors
by Tiago Felipe Goncalves 01 Mar '19

01 Mar '19

Hi, I'm trying to compile bird204 for test purpose, but I'm facing some errors, anyone have an idea? BIRD was configured with the following options: Source directory: . Object directory: obj Iproute2 directory: /etc/iproute2 System configuration: ./sysdep/cf/linux.h Debugging: no POSIX threads: yes Routing protocols: bgp pipe rpki Kernel MPLS support: no Client: yes root@lab-rs:~/bird# make MKDIR -p obj/client obj/conf obj/doc obj/filter obj/lib obj/nest obj/test obj/proto/bgp obj/proto/pipe obj/proto/rpki obj/sysdep/linux obj/sysdep/unix obj/doc m4 -s -P conf/gen_parser.m4 conf/confbase.Y conf/flowspec.Y obj/.dir-stamp filter/config.Y nest/config.Y proto/bgp/config.Y proto/pipe/config.Y proto/rpki/config.Y sysdep/linux/netlink.Y sysdep/unix/config.Y sysdep/unix/krt.Y >obj/conf/cf-parse.y bison -Dparse.lac=full -Dparse.error=verbose -dv -pcf_ -b obj/conf/cf-parse obj/conf/cf-parse.y conf/gen_parser.m4: warning: 11 nonterminals useless in grammar [-Wother] conf/gen_parser.m4: warning: 34 rules useless in grammar [-Wother] conf/confbase.Y:90.13-29: warning: nonterminal useless in grammar: label_stack_start [-Wother] %type <mls> label_stack_start label_stack ^^^^^^^^^^^^^^^^^ conf/confbase.Y:90.31-41: warning: nonterminal useless in grammar: label_stack [-Wother] %type <mls> label_stack_start label_stack ^^^^^^^^^^^ conf/confbase.Y:86.22-25: warning: nonterminal useless in grammar: time [-Wother] %type <time> expr_us time ^^^^ nest/config.Y:94.162-164: warning: nonterminal useless in grammar: tos [-Wother] %nonassoc PREFIX_DUMMY ^^^ nest/config.Y:440.1-13: warning: nonterminal useless in grammar: password_list [-Wother] []s

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show route output explained
by Eugene M. Zheganin 01 Mar '19

01 Mar '19

Hello, Since the documentation doesn't specify the exact output format, could anyone please explain it to me ? 0.0.0.0/0 via 192.168.57.60 on re0 [ospfv4 11:17:31] ! E2 (150/10/10000) [192.168.100.254] via 90.150.180.20 on ng0 [kernel1 11:12:08] (10) I understand most of it, but not in detail. 1) What, for example, the exclamation mark means ? Bird mimics Juniper notation, but Juniper doesn't have exclamation mark in it, only +/-/*. (Since bird mimics the Juniper notation it would be cool if it would also print the mark meanings, like JunOS or Cisco IOS does) 2) What is the triplet (150/10/10000) ? I understand these are probably metric/cost/preference, but which is what ? Juniper here uses single metric. 3) When it comes to internal OSPF area, this field output changes to double-field one: 192.168.57.0/24 dev re0 [direct1 11:12:08] * (240) dev re0 [ospfv4 11:17:31] I (150/10) [192.168.100.254] again, which field in (150/10) is what ? Thanks.

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Routes counting
by Miłosz Oller 01 Mar '19

01 Mar '19

Hello, Bird 2.0.3 from source, Debian 9. Sometimes I see very huge numbers of exported routes: Description: Lipka IPv4 BGP state: Established Neighbor address: 185.212.67.245 Neighbor AS: 205604 Neighbor ID: 185.212.64.1 Local capabilities Multiprotocol AF announced: ipv4 Route refresh Graceful restart 4-octet AS numbers Enhanced refresh Long-lived graceful restart Neighbor capabilities Multiprotocol AF announced: ipv4 Route refresh 4-octet AS numbers Session: external AS4 Source address: 185.212.67.246 Hold timer: 167.076/180 Keepalive timer: 22.324/60 Channel ipv4 State: UP Table: master4 Preference: 100 Input filter: ACCEPT Output filter: ACCEPT Routes: 756702 imported, 4294390282 exported But it should be max ca 756000. When I restart session several times, I see correct number of routes. Is it a bug or feature? :) -- Miłosz

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BIRD 2.0.4 and 1.6.6
by Ondrej Filip 01 Mar '19

01 Mar '19

Dear BIRD users, we just released two new versions - 1.6.6 and 2.0.4. Many thanks mainly to Santiago and Maria! Version 1.6.6 o Several bugfixes related to route propagation Version 2.0.4 o OSPF: Opaque LSAs (RFC 5250) o OSPF: DN-bit handling (RFC 4576) o Preferred route counters are back o Important BGP bugfix o Several bugfixes related to route propagation o some minor bugfixes Cheers! Ondrej

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BIRD Filter performance improvement: Call for testing
by Maria Matejka 25 Feb '19

25 Feb '19

Hello! We are finishing a significant rework of BIRD filters in 2.0 branch. We dropped the old interpreter and wrote it a bit differently. Currently, our tests are promising at least 10% reduction of the interpreting time; the actual improvement depends on the filter. See the "faster-filters" branch in our git repository: https://gitlab.labs.nic.cz/labs/bird/tree/faster-filters Anyway, reworking a 20-year-old code with almost no documentation and not many tests always yields unexpected bugs. Please try to run your filters on this commit and report if it doesn't work. The frontend and overall behavior should not change in any way -- it should only do it faster. There is a known bug -- we still haven't reimplemented caching of function and named filter comparison results so reconfiguration may take significantly longer time than before on this branch. This will be fixed before merging this branch into master. Thank you for using BIRD, thank you for your testing! Maria

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Log limit
by Ticlea Alexandru 21 Feb '19

21 Feb '19

Hello According to user guide, the next line looks correct but it leads to a syntax error log "/var/log/bird.log" 102400 "/var/log/bird.log-prev" { info, remote, warning, error, auth, fatal, bug }; Can we help me to understand the unit used to express the limit? I use bird 2.0.2

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Command show all hop (BGP)
by Elder Costa 21 Feb '19

21 Feb '19

Hi ! Is there command what show all path from route ? ASN to ASN Thanks !

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Reject route
by Elder Costa 21 Feb '19

21 Feb '19

Hi !!! I need reject one route to AS coming from one AS particular... Is there are possibility ? The objective are use other link to upstream... Thank so much ! Elder Costa Network Analyst / Analista de Redes Phone / Telefone (+55) 019 3522-8310 Extension / Ramal 288 elder.costa(a)talklink.com.br [ mailto:rafael.menicatti@talklink.com.br ]

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bird 2.0.3 pushes connected routes to kernel
by Kenth Eriksson 19 Feb '19

19 Feb '19

After upgrading from bird 2.0.2 to 2.0.3 we discovered that bird pushes connected routes to the kernel. Tried to alter the preference values for kernel and device, but bird still pushes the connected routes, resulting in duplicate in kernel FIB. How to import connected and kernel routes without bird installing the connected routes again? The only way I found to make it work was by putting an export filter in the kernel like this; export where (source != RTS_DEVICE); Thanks, Kenth

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BIRD over internet with static routes?
by dan 17 Feb '19

17 Feb '19

I'm wanting to use BIRD to monitor WAN connectivity of CLIENTS to a SERVER. I'm not familiar with BIRD and I'm relying on RFC5883 description of multi-hop to make my case. I want to set 2 static routes. 1 is a route from CLIENT to SERVER out WAN1. This is the route to be monitored by BFD and it's route distance is 1. The second route is the fall-back, it's not monitored and it's distance is 2 out WAN2. BIRD/BFD's job here is simply to tear down the static route with distance 1. Complication, client's are likely dynamic IP address and also likely behind NAT. The net result is to have a VPN such as wireguard migrate from WAN1 to WAN2 rapidly on WAN1 failure. Wireguard is built to handle this, so ignore complications from changing of src addresses, they are handled. Is this doable and if so, can anyone offer any help with the config? Thanks! Dan.

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