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On Thursday 29 Dec 2011 07:10:19 Lubos Kolouch wrote: |
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> walt, Wed, 28 Dec 2011 17:01:59 -0800: |
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> > Sometime in the last month or so (when I wasn't looking) my ~x86 and |
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> > ~amd64 machines quit working when I try to run wireshark or tcpdump, |
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> > etc, but I don't know exactly when or why. (My amd64 machine still |
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> > sniffs packets normally.) |
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> > |
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> > I get this same error from any packet sniffing app: |
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> > |
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> > Can't open netlink socket 93:Protocol not supported |
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> > |
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> > Strace shows that this is the failing system call: |
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> > |
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> > socket(PF_NETLINK, SOCK_RAW, 12) = -1 EPROTONOSUPPORT (Protocol not |
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> > supported) |
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> > |
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> > That makes me think of some missing kernel config that may have been |
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> > added or modified in recent kernels, so I tried gentoo-sources-3.0.6 |
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> > (same as my working amd64 machine) with no joy. Same error message. |
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> > |
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> > Have I missed some important gentoo bulletin about networking recently? |
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> > Anyone have working packet sniffing on ~arch? |
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> |
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> Hi, |
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> |
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> If I remember correctly, I needed to set |
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> Networking support -> Networking options -> Network packet filtering |
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> framework (Netfilter) -> Core Netfilter Configuration -> Netfilter |
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> connection tracking support |
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> |
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> It has been a while though, so it may be another option in the |
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> netfilter config - just try it :) |
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> |
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> Lubos |
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|
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tcpdump-3.9.8-r1 and kernel-3.0.6-gentoo works fine here with no errors. |
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|
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$ cat /usr/src/linux/.config | grep CONNTRACK |
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CONFIG_NF_CONNTRACK=y |
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CONFIG_NF_CONNTRACK_MARK=y |
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# CONFIG_NF_CONNTRACK_EVENTS is not set |
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CONFIG_NF_CONNTRACK_TIMESTAMP=y |
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# CONFIG_NF_CONNTRACK_AMANDA is not set |
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CONFIG_NF_CONNTRACK_FTP=y |
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# CONFIG_NF_CONNTRACK_H323 is not set |
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CONFIG_NF_CONNTRACK_IRC=y |
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CONFIG_NF_CONNTRACK_BROADCAST=y |
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# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set |
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CONFIG_NF_CONNTRACK_SNMP=y |
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# CONFIG_NF_CONNTRACK_PPTP is not set |
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# CONFIG_NF_CONNTRACK_SANE is not set |
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CONFIG_NF_CONNTRACK_SIP=y |
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# CONFIG_NF_CONNTRACK_TFTP is not set |
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CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y |
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CONFIG_NF_CONNTRACK_IPV4=y |
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CONFIG_NF_CONNTRACK_PROC_COMPAT=y |
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CONFIG_NF_CONNTRACK_IPV6=y |
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|
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HTH. |
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-- |
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Regards, |
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Mick |
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