Description of problem: Since upgrading to F13, my ZNC is no longer able to connect to irc.freenode.net. If I give it one of the IPv4-only names instead, e.g. niven.freenode.net, then it connects just fine. Version-Release number of selected component (if applicable): znc-0.090-2.fc13.x86_64 How reproducible: 100% Steps to Reproduce: 1. Add a connection to irc.freenode.net/6667 2. Watch it fail. :( Actual results: <*status> Attempting to connect to [irc.freenode.net 6667] ... <*status> Disconnected from IRC (Broken pipe). Reconnecting... <*status> Disconnected from IRC. Reconnecting... Expected results: <*status> Connected! Additional info: I suspect that this is related to c-ares bug #548396. I'm not sure why this is suddenly an issue though, because it looks like ZNC in F12 also used c-ares. I do see that "ifconfig eth0" reports an inet6 addr "Scope:Global", but I'm not sure if it had that in F12. I'm pretty sure my IPv6 doesn't work though, because "tracepath irc.freenode.net" reports "!N". Disabling IPv6 altogether doesn't solve the problem -- then I get: <*status> Attempting to connect to [irc.freenode.net:6667] ... <*status> Cannot connect to IRC (Cannot assign requested address (Is your IRC server's host name valid?)). Retrying... IRC with xchat on the same machine works fine, but then xchat doesn't use c-ares. You can see it try IPv6 and then ultimately land on IPv4: * Looking up irc.freenode.net * Connecting to chat.freenode.net (2001:6b0:5:1688::10) port 6667... * Connected. Now logging in... * *** Looking up your hostname... * *** Checking Ident * *** Found your hostname * *** No Ident response * *** Spoofing your IP * Welcome to the freenode Internet Relay Chat Network jistone * Your host is farmer.freenode.net[74.208.174.239/6667], running version ircd-seven-1.0.1
(In reply to comment #0) > I'm pretty sure my IPv6 doesn't work though, > because "tracepath irc.freenode.net" reports "!N". I meant tracepath6 reports "!N" -- tracepath works fine in IPv4.
Please try again with the latest znc from updates-testing yum update znc --enablerepo=updates-testing Thanks.
I installed znc-0.098-0.2.beta.fc13.x86_64. The message is a little different now, but it still doesn't work: <*status> Attempting to connect to [irc.freenode.net 6667] ... <*status> Disconnected from IRC (Network is unreachable). Reconnecting...
I'll look into this. In a way, it is kind of NOTABUG since your configuration is showing an IPv6 address, although it is a bug if it doesn't work even if you disable IPv6. Do you still get the same error when you disable IPv6?
I finally got back to this, and now I'm up to znc-0.098-2.fc13.x86_64. (In reply to comment #4) > I'll look into this. In a way, it is kind of NOTABUG since your configuration > is showing an IPv6 address, although it is a bug if it doesn't work even if you > disable IPv6. I think my network admins configured IPv6 locally for testing purposes, but without routing to the internet. But it seems reasonable to me that znc should fall over to other addresses, including IPv4, after the attempt on IPv6 fails. > Do you still get the same error when you disable IPv6? I tried fully-disabling IPv6 again, and it still get this error: <*status> Cannot connect to IRC (Cannot assign requested address (Is your IRC server's host name valid?)). Retrying...
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Same on znc-0.098-2.fc15.x86_64
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This is still relevant to RHEL6. For future people who find this issue i managed to solve it by setting the bind address for the channel to 0.0.0.0