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Hello,
Before digging into this too far, I was wondering if anyone
has had problems with the DHCP server (I tried 2.0pl17 and 2.0pl27)
ignoring requests sent to aliased ethernet interfaces under Linux
(version 2.0.36)?
Here's the scenario:
The dhcp client is on the "other" side of a cisco router
The router is configured to forward DHCP requests to an
aliased interface on the server running dhcpd.
The dhcpd server is configured with a shared-network statement
for local dhcp requests, and has a separate subnet declaration
for clients on the other side of the router (i.e. where this
client is).
Observations:
I don't think the problem is with the packets getting to the dhcpd
server, because it is receiving the packets -- I verified this by
adding a 'warn' debug statement in the dispatch() routine where it
calls the handler (in common/dispatch.c).
If the cisco router is re-configured to send the packets to the
'real' interface (not one of the aliased interfaces), then
the dhcpd server sees and resonds to the requests.
The aliased and main interfaces are both on the same class C
subnet.
If I run tcpdump on the dhcpd server, the dhcpd server starts responding
to packets sent to the aliased interface (I'm guessing that running
tcpdump in promiscuous mode causes packets sent to the aliased
interfaces to show up on the main ethernet interface as well...?)
Thanks for your time.
- Dan (Daniel Carroll - [EMAIL PROTECTED])
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