Wireshark · Ethereal-users: RE: [Ethereal-users] extension headers ipv6

[Michele Bustos <mbustos@xxxxxxxxxxx>]

I have an instance where we are configuring extension headers, specifically
routing and hop-by-hop with an ICMPv6 after the extension header.
Ethereal decodes that same packet with a incorrect checksum (suggested
correct 0xA3c4)(41924) AND a Malformed Packet ICMPv6. Other vendor's trace
programs are giving me a GOOD frame indicator and no "bad" flag for the
checksum (0xA3d3)(41939). My gut is to trust ethereal, however, I have not
seen it in writing that the checksum of upperlayer protocols when daisy
chained with IPv6 extension headers is supported.  I am trying to force a
bad checksum on that packet at this time to further investigate.
Ideas?  Is there anyone who would know for sure?
thx!
/m

-----Original Message-----
From: Guy Harris [mailto:guy@xxxxxxxxxx]
Sent: Wednesday, October 30, 2002 12:26 PM
To: Michele Bustos
Cc: 'ethereal-users@xxxxxxxxxxxx'
Subject: Re: [Ethereal-users] extension headers ipv6


On Wed, Oct 30, 2002 at 09:27:47AM -0800, Michele Bustos wrote:
> Does ethereal specifically support the decode of extension headers for
ipv6?
> daisy chained?

It should.  Have you seen a case where it doesn't?  If so, that's a bug.