[syslinux] syslinux.efi pxeboot across multiple subnets

Geert Stappers stappers at stappers.nl
Tue Nov 5 09:21:59 PST 2013


Op 2013-11-04 om 20:26 schreef Jason Matthews:
> The same client was used for syslinux.efi (both success on same subnet and
> failure on different subnet) and grub.efi. The DHCP host block is setup
> like:
>
> host testing {
>     hardware ethernet {mac} ;
>     next-server 10.16.195.178 ;
>     filename "rhel64/syslinux.efi" ;
> }
>
> I'll pull a tcpdump filtering by the IP tomorrow when I get back to the
> systems.
>

Jason did that.
However the E-mail is to big to get through the mailinglist.

To get more eye balls on the tcpdump,
it has to be published elsewhere.


Regards
Geert Stappers
in his role as moderator for the Syslinux mailinglist.
--
To: For discussion of Syslinux and tftp-hpa <syslinux op zytor.com>                                                         Subject: Re: [syslinux] syslinux.efi pxeboot across multiple subnets
Message-ID: <CAF+RMG+b+X-Ge_eP+MTYuoYanDp+FZXwYqgVp8uEDZ=_1EfdnA op mail.gmail.com>

Here is a tcpdump from a mirrored port on the test client followed by a
tcpdump from the tftp server filtered by IP taken at the same time. I                                                    replaced the syslinux.efi and ldlinux.e64 files with a fresh copy from the
syslinux-6.02.zip to verify I wasn't still using 6.01 by mistake. Please                                                 let me know if any more information would be helpful. Thanks all your help.

mirrored-port# tcpdump -i eth0 -vv
09:52:52.687565 IP6 (hlim 1, next-header OSPF (89) payload length: 36)
fe80::a17:f4ff:fe62:631f > ff02::5: OSPFv3-hello 36: rtrid 2.2.2.2 backbone
V6/E/R ifid 0.0.0.32 pri 1 int 10 dead 40 dr 2.2.2.2 nbrs
09:52:58.795974 IP (tos 0xc0, ttl 1, id 57703, offset 0, flags [none],
proto OSPF (89), length 64) 10.16.233.1 > 224.0.0.5: OSPFv2, Hello, length: 44
<snip/>


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