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DHCP trouble

 

 

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joerg at alea

Jul 5, 2004, 3:25 PM

Post #1 of 2 (476 views)
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DHCP trouble

Hi,

I've a really tricky problem. I bring up my network interface with pump.
This sets the default route to a gateway, but the acces is limited on
some hosts. After this, I run vpnc-connect to bring up the channel to get
access to the internet. This resets the default route on the tunnel.After
an hour pump tries to renew the dhcp lease. But this fails, because the
dhcp server is only reachable on the local net, but the route goes
through the tunnel device. If I set a route for the dhcp server by hand,
I get no problems.

I asked someone to check the cisco client and it sets a route for dhcp,
too. I don't know where it knows about the dhcp.

Have you any idea, how to solve this problem?

J?rg.

--
Was man m?helos erreichen kann, ist gew?hnlich nicht der M?he wert,
erreicht zu werden.
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massar at unix-ag

Jul 13, 2004, 2:32 PM

Post #2 of 2 (443 views)
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DHCP trouble [In reply to]

hi,

> an hour pump tries to renew the dhcp lease. But this fails, because the
> dhcp server is only reachable on the local net, but the route goes
> through the tunnel device. If I set a route for the dhcp server by hand,
> I get no problems.
[...]
> Have you any idea, how to solve this problem?

I see no possibilty to detected dhcp or dhcp-server ip
from vpnc-connect...

A solution would be to call a script from your dhcp-client
to automatically add a host route for the dhcp-server
(at least with dhclient, it is possible)

cu
maurice

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