Date: Tue, 25 Jan 2005 16:02:55 +0100 From: Jeremie Le Hen <jeremie@le-hen.org> To: freebsd-net@freebsd.org Cc: Jeremie Le Hen <jeremie@le-hen.org> Subject: Re: gif(4) and bpf(4) Message-ID: <20050125150255.GE59685@obiwan.tataz.chchile.org> In-Reply-To: <20050125144153.GJ47638@dhcp120.icir.org> References: <20050124212011.GC59685@obiwan.tataz.chchile.org> <20050125011615.GB47638@dhcp120.icir.org> <20050125143327.GD59685@obiwan.tataz.chchile.org> <20050125144153.GJ47638@dhcp120.icir.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> Try tcpdump -L -i gif0 on the affected system and post what you get. You
> might need to install the port if the base system tcpdump doesn't
> have the -L option.
>
> If you get a list of encapsulations back, try using them with the -y
> option,,e.g.:
> tcpdump -y null -i gif0
I need indeed tcpdump port. But unfortunately, it did not work.
Here is the typescript:
%%%
yoda:root# ping 192.168.4.13 >/dev/null 2>&1 &
[1] 53373
yoda:root# /usr/local/sbin/tcpdump -L -i gif0
Data link types (use option -y to set):
NULL (BSD loopback)
yoda:root# /usr/local/sbin/tcpdump -y null -i gif0
tcpdump: data link type null
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on gif0, link-type NULL (BSD loopback), capture size 96 bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
yoda:root# /usr/local/sbin/tcpdump -ni ep0 esp
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ep0, link-type EN10MB (Ethernet), capture size 96 bytes
15:59:24.708405 IP xx.xx.xx.xx > yy.yy.yy.yy: ESP(spi=0x0c988eaf,seq=0x1f3)
15:59:24.746374 IP yy.yy.yy.yy > xx.xx.xx.xx: ESP(spi=0x0cb31758,seq=0x1f0)
15:59:25.728390 IP xx.xx.xx.xx > yy.yy.yy.yy: ESP(spi=0x0c988eaf,seq=0x1f4)
15:59:25.766083 IP yy.yy.yy.yy > xx.xx.xx.xx: ESP(spi=0x0cb31758,seq=0x1f1)
^C
4 packets captured
83 packets received by filter
0 packets dropped by kernel
%%%
Does any one have other ideas ? It seems the code was partly written
by sam@, brooks@ and shin@.
Best regards,
--
Jeremie Le Hen
jeremie@le-hen.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050125150255.GE59685>