[Dnsmasq-discuss] problem with dhcp options

[Simon Kelley]

Carlos Carvalho wrote:
> Simon Kelley (simon at thekelleys.org.uk) wrote on 5 January 2007 07:43:
>  >Carlos Carvalho wrote:
>  >> I'm using the config below for dhcp in dnsmasq.
>  >> 
>  >> In /etc/dnsmasq.conf:
>  >> 
>  >> dhcp-authoritative
>  >> no-ping
>  >> leasefile-ro
>  >> domain=fisica.ufpr.br
>  >> dhcp-option=19,0
>  >> conf-file = /etc/dnsmasq/dhcp
>  >> 
>  >> In /etc/dnsmasq/dhcp:
>  >> 
>  >> dhcp-option=3,zagros
>  >> # smtp server
>  >> dhcp-option=69,hoggar
>  >> dhcp-range = 192.168.5.1,static,5m
>  >> conf-file = /etc/dnsmasq/dhcp-hosts
>  >> 
>  >> And this is the config for one of the machines in /etc/dnsmasq/dhcp-hosts:
>  >> 
>  >> dhcp-host = abiod,00:e0:7d:d0:b8:e5,id:*,net:abiod
>  >> dhcp-boot = net:abiod,/var/remoteboot/pentium-rtl8139,hoggar
>  >> dhcp-option = abiod,19,/var/nfsroot/profs-root/abiod
>  >
>  >Root path is option 17, not option 19. That probably explains everything
>  >else. Option 19 is a boolean option and clients will be expecting a one
>  >byte data field, the presence of a string is likely to confuse them.
> 
> Ops, typo. However, it didn't change anything. Further, for machines
> that do pxe boot there's no root path option:
> 
> dhcp-host = teide,00:11:2f:84:22:db,id:*,net:teide
> dhcp-boot = net:teide,/var/remoteboot/pxelinux.0,hoggar
> 
> and I get
> 
> *** glibc detected *** malloc(): memory corruption: 0x0804f278 ***
> zsh: abort      env - ./udhcpc -q -s ./script.udhcpc
> 

Please could you capture the packets in question and send them to me?

tcpdump -i <interface> -s 0 -w /tmp/dump

on the machine running dnsmasq should do it.

Cheers,

Simon.