- Bird-users - Mailing Lists

None
by None 13 Jun '26

13 Jun '26

26-07-2012 08:57:38 <WARN> OSPF: LSA disappeared (Type: 0003, Id: 10.0.95.236, Rt: 172.31.1.13) 26-07-2012 08:57:43 <WARN> OSPF: LSA disappeared (Type: 0003, Id: 10.0.95.236, Rt: 172.31.1.13) This was filling log, until that interface on other router was up again. OSPF setup is quite simple, Bird is in default area 0.0.0.0, route 10.0.95.236 is on router in different area (totaly stub) for which router 172.31.1.13 is ABR. Why is Bird repeatedly logging "LSA disappear" for same prefix? Could this be disabled in some way? Or have I something wong in Bird config? OSPF protocol config is realy simple: protocol ospf ospfbackbone { import all; export filter doospf; area 0.0.0.0 { interface 172.31.1.0/24 { cost 10; hello 10; retransmit 5; priority 250; dead 40; type broadcast; authentication cryptographic; password "hidden"; }; #int }; #area } Thanks for response. With regards Pavel Zichovsky

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None
by None 13 Jun '26

13 Jun '26

'transit2.web4u.cz' (81.91.80.100) which responds to those networks but not for anything on AS 13285. Not sure which side is the problem. Could you get your end checked? Thanks Neil

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None
by None 13 Jun '26

13 Jun '26

much less work. Some MPLS structure/macro abstraction layer will be required, though.

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None
by None 13 Jun '26

13 Jun '26

itself until I disabled/enabled radv protocol. The dual-stack ppp session on interface ppp243 ended and after 9 sec. another session which is only ipv4 started on same interface ppp243. Radv tries to send RA on interface ppp243 which now is not v6-enabled. So is like you said. What can be done ? thx, --0015177407d460d95f04a7d14fdd Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable <div class=3D"gmail_quote">On Mon, Jul 11, 2011 at 6:27 PM, Ondrej = Zajicek <<a href=3D"mailto:santiago@crfreenet.org">san= tiago(a)crfreenet.org</a>> wrote: <blockquote class=3D"gmail_quo= te" style=3D"margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204= , 204); padding-left: 1ex;"> <div class=3D"im">On Mon, Jul 11, 2011 at 05:06:49PM +0300, Bogdan Besliu w= rote: > =A0 =A0and the last messages repeats itself until hdd is full; or bird= 6 daemon > =A0 =A0stop working. > =A0 =A0it looks like the problems appear when radv tries to send RA an= d at the > =A0 =A0same time ppp interface goes down. > > =A0 =A0any ideas ? </div>One possible idea is that ppp iface remains up, but its link-local<br= > address was removed, is this possible? (or at least BIRD thinks it is still up). Could you enable debug messages using "debug all { interfaces }" command? </blockquote><div>Hello Ondrej, </div>Here are the logs with= debug=A0 all { interfaces } enabled: <div> Jul 11 19:30:42 ppp-test = pppd[2515]: Using interface ppp243 Jul 11 19:30:42 ppp-test pppd[2515]: = local=A0 LL address fe80::0000:0000:0000:0001 Jul 11 19:30:42 ppp-test pppd[2515]: remote LL address fe80::0000:0000:567a= :ec93 Jul 11 19:30:42 ppp-test pppd[2515]: remote IP address 192.168.67.= 30 ...... Jul 11 19:39:21 ppp-test pppd[2515]: LCP terminated by peer= Jul 11 19:39:21 ppp-test pppd[2515]: Connect time 8.7 minutes. Jul 11 19= :39:21 ppp-test pppd[2515]: Sent 3618619 bytes, received 872185 bytes. J= ul 11 19:39:21 ppp-test pppd[2515]: Terminating on signal 15 Jul 11 19:3= 9:30 ppp-test pppd[5023]: Using interface ppp243 ......... Jul 11 19:39:30 ppp-test pppd[5023]: remote IP address 192.168= .67.20 ........ 11-07-2011 19:39:21 <TRACE> radv1 < seco= ndary address fe80::/10 on interface ppp243 removed 11-07-2011 19:39:21 = <TRACE> radv1 < primary address 2001:1111:1111:1::/64 on interface= ppp243 removed 11-07-2011 19:39:21 <TRACE> static1 < interface ppp243 goes down<b= r>11-07-2011 19:39:21 <TRACE> radv1 < interface ppp243 goes down<b= r>11-07-2011 19:39:30 <TRACE> static1 < interface ppp243 changes M= TU 11-07-2011 19:39:30 <TRACE> radv1 < interface ppp243 changes MTU<b= r>11-07-2011 19:39:30 <ERR> radv1: Socket error: Network is unreachab= le 11-07-2011 19:39:31 <TRACE> static1 < interface ppp243 chang= es link 11-07-2011 19:39:31 <TRACE> radv1 < interface ppp243 changes link<= br>11-07-2011 19:39:31 <TRACE> static1 < interface ppp243 changes = link 11-07-2011 19:39:31 <TRACE> radv1 < interface ppp243 chang= es link 11-07-2011 19:39:32 <ERR> radv1: Socket error: Network is unreachable= </div><div>From that moment the error=A0 "Socket error: Ne= twork is unreachable" repeats itself until I disabled/enabled radv pro= tocol. </div></div>The dual-stack ppp session on interface ppp243 ended and after = 9 sec. another session which is only ipv4 started on same interface ppp243.= Radv tries to send RA on interface ppp243 which now is not v6-enabled. So = is like you said. What can be done ? thx, --0015177407d460d95f04a7d14fdd--

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None
by None 13 Jun '26

13 Jun '26

internet exchange points. How to write filter for BGP_Peer5 to export only routes wich I get from Peers 1,2,3 (only routes to ix points, without global internet connection). Thanks. --- Marek Wajdzik E-NET24 Internet, Zywiec

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None
by None 13 Jun '26

13 Jun '26

5.5 Route attributes ... enum source what protocol has told me about this route. Possible values: RTS_DUMMY, RTS_STATIC, RTS_INHERIT, RTS_DEVICE, RTS_STATIC_DEVICE, RTS_REDIRECT, RTS_RIP, RTS_OSPF, RTS_OSPF_IA, RTS_OSPF_EXT, RTS_BGP, RTS_PIPE. Why I receive error? Vladislav Grishin

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None
by None 13 Jun '26

13 Jun '26

LSACK the prematurely aged entries before starting to send fresh LSUPDs with InitialSequenceNumber 0x80000001 (and not ...00). Casual grep suggests that other places where the sequence number is incremented, there isn't any warp-around check either. Lab setup: - 2x JunOS 9.3 - 1x BIRD OSPF (1.2.2) on Linux - 1x Quagga OSPF (0.98.x, 0.99.16) on Linux All connected on a single Ethernet as Area 0. The JunOS systems are DR/BDR. For the curious, the inter-op aftermath is this: - Quagga's ospfd, on receiving the bad LSUPD, correctly logs the abnormality and then segfaults instantly [bug #586] - JunOS just doesn't care and installs the entry with the illegal sequence number and sends it to other routers as usual -- thereby making a restart of quagga's ospfd very very short-lived and sad - The situation only resolves itself after one hour (the illegal LSUPD reaches MaxAge) or by forcefully purging the entry from the other systems' databases Regards, - D.

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None
by None 13 Jun '26

13 Jun '26

There are a number of special directives which can be included within an action: `ECHO' copies yytext to the scanner's output. `BEGIN' followed by the name of a start condition places the scanner in the corresponding start condition (see below). `REJECT' directs the scanner to proceed on to the "second best" rule which matched the input (or a prefix of the input). The rule is chosen as described above in *Note Matching::, and `yytext' and `yyleng' set up appropriately. It may either be one which matched as much text as the originally chosen rule but came later in the `flex' input file, or one which matched less text. For example, the following will both count the words in the input and call the routine `special()' whenever `frob' is seen: int word_count = 0; %% frob special(); REJECT; [^ \t\n]+ ++word_count; Without the `REJECT', any occurrences of `frob' in the input would not be counted as words, since the scanner normally executes only one action per token. Multiple uses of `REJECT' are allowed, each one finding the next best choice to the currently active rule. For example, when the following scanner scans the token `abcd', it will write `abcdabcaba' to the output: .... `flex' scans your rule actions to determine whether you use the `REJECT' or `yymore()' features. The `REJECT' and `yymore' options are available to override its decision as to whether you use the options, either by setting them (e.g., `%option reject)' to indicate the feature is indeed used, or unsetting them to indicate it actually is not used (e.g., `%option noyymore)'. Another indication is: flex -s -Cf -B -8 -ocf-lex.c -Pcf_ cf-lex.l flex: REJECT cannot be used with -f or -F make: *** [cf-lex.c] Error 1 You can't use -Cf because flex think you are using REJECT in your scanner. > > Sure, it is not elegant and it might cause bugs in the future (currently, I do > not see any real bug), but your rename is not elegant either. No, but it is the equivalent of renaming a variable from an ideal name to a less ideal name, not a big deal.

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None
by None 13 Jun '26

13 Jun '26

> > I ask because I would like to configure some(if not everything) from our > app with its own CLI/GUI. People usually generate config file and than load it to BIRD. BIRD has quite smart reconfiguration so it is able to see the differences. Ondrej > > Jocke

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None
by None 13 Jun '26

13 Jun '26

interfaces. Suppose the following configuration for router A, # ifconfig eth0 10.1.1.1 netmask 255.255.255.0 broadcast 10.1.1.255 # ifconfig eth1 10.2.2.2 netmask 255.255.255.0 broadcast 10.2.2.255 # ifconfig eth0:0 10.10.10.1 netmask 255.255.255.0 broadcast 10.10.10.255 and a similar one for another router B, # ifconfig eth0 10.1.1.42 netmask 255.255.255.0 broadcast 10.1.1.255 # ifconfig eth1 10.3.3.42 netmask 255.255.255.0 broadcast 10.3.3.255 # ifconfig eth0:0 10.10.10.42 netmask 255.255.255.0 broadcast 10.10.10.255 and then for each say we set up OSPF on eth0:0 such as protocol ospf { ... area 0.0.0.0 { interface "eth0:0" { cost 10; stub no; hello 10; ... type nonbroadcast; strict nonbroadcast yes; authentication none; neighbors { 10.10.10.42 eligible; }; }; interface "eth1" { cost 10; stub yes; ... }; }; } If we check the configuration for ospf, we don't see interface eth0:0 at all: # birdc BIRD 1.0.4 ready. bird> show ospf interface ospf1: Interface "eth1": Area: 0.0.0.0 (0) Type: broadcast ... and note the signifigant absence of eth0:0. So apparently we can't route over alias interfaces? Is there any technical reason for this? I'd really like to be able to because I have a number of routers with different subnets hanging off of them, and some routers beneath those subnets. But I can only route over one particular subnet per interface, the one assigned to the physical interface. Thanks! 'james -- James A. Crippen <james(a)unlambda.com> ,-./-. Anchorage, Alaska, Lambda Unlimited: Recursion 'R' Us | |/ | USA, 61.2069 N, 149.766 W, Y = \f.(\x.f(xx)) (\x.f(xx)) | |\ | Earth, Sol System, Y(F) = F(Y(F)) \_,-_/ Milky Way.

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