how to change isc-dhcp3-server replies? (was:

[Mel]

On Sunday 02 September 2007 03:13:21 Joe wrote:

Gosh, I suddenly remember why I dropped yahoo webmail....

> Ok, no so true.  I am watching tcpdump output from the two binaries. The
> old binary sends its reply to 255.255.255.255, while the new one sends its
> reply to 192.168.0.15.  Same config file and I tried the always-broadcast
> flag, and it only sets the bit for the client, but the server still
> broadcasts its reply to the client on the subnet mask.
>
> Old client reply (ml.. is server af is client):
>
> 1188694380.961642 ml:ml:ml:ml:ml:ml > ff:ff:ff:ff:ff:ff, ethertype IPv4
> (0x0800), length 342: (tos 0x10, ttl  16, id 0, offset 0, flags [none],
> proto: UDP (17), length: 328) 192.168.0.15.67 > 255.255.255.255.68:
> BOOTP/DHCP, Reply, length: 300, xid:0x77915dc3, flags: [Broadcast] (0x8000)
> Your IP: 192.168.0.13
>           Client Ethernet Address: af:af:af:af:af:af [|bootp]
>
> new client does not do this and clients do not get their ip address. I read
> somewhere that linux had a problem doing this in 2.2 kernels and it has
> something to do with the routing table in linux.  Not sure what is going on
> here, but the routing table looks fine.

<slash mangled quotes>

So what does the tcpdump exchange look like with the new binary and the 
always-broadcast flag? And we're talking server binaries, right?
-- 
Mel

People using reply to all on lists, must think I need 2 copies.