I'm using ngrep to see some HTTP traffic.

sudo ngrep -ld eth0 '.*' ip6 and port 80

But I don't see any output (other than # marks). If I do a similar test with IPv4, all works fine.

Any ideas?

asked 21 Nov '11, 17:11

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aid
566172042
accept rate: 5%


ngrep 1.45 has a bug in it that effects IPv6. As per the discussion at,

https://bugs.launchpad.net/ubuntu/+source/ngrep/+bug/567286

There is a patch available, located at,

https://bugs.launchpad.net/ubuntu/+source/ngrep/+bug/567286/+attachment/1341909/+files/ngrep-fix-ipv6-support.patch

Which resolves this issue. In order to use this patch, you'll need to download the ngrep source and patch it with the command,

patch < ngrep-fix-ipv6-support.patch

If you then configure and install ngrep as normal you'll be able to see the content of IPv6 packets from ngrep.

link

answered 21 Nov '11, 17:16

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aid
566172042
accept rate: 5%

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Asked: 21 Nov '11, 17:11

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Last updated: 01 Jul '13, 09:24

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