On Mon, 18 Mar 2002, Hugh Irvine wrote: > > Does anyone know of a way to get Radiator to respond back on the IP > > something came in on on a multihomed host, without apparently running a > > separate copy of radiator bound to each IP address? Or am I just stupid and > > missing something simple? =) > > > > This is with Radiator 2.19 on RH Linux 7.2. > > > > You are correct when you say the only way to do this is by running separate > instances of Radiator on different IP addresses (and possibly different port > numbers as well). > > The source IP address used for the reply packet is usually determined by the > operating system, rather than Radiator.
I don't know how the radius protocol might be affected by this, but there are tricks you can utilize on a Linux system with multiple IPs to cause outgoing packets to have the source address of your choice. Suppose you have a system with eth0 10.0.0.10 and a number of IP aliases on eth0:XX, and a default gw of 10.0.0.1 i.e. ifconfig eth0 10.0.0.10 ... ifconfig eth0:0 10.0.0.2 ... ifconfig eth0:1 10.0.0.3 ... route add default gw 10.0.0.1 If you want to talk to 10.2.0.1 as 10.0.0.2 and talk to 10.3.0.1 as 10.0.0.3, do the following: route add -host 10.2.0.1 gw 10.0.0.1 dev eth0:0 route add -host 10.3.0.1 gw 10.0.0.1 dev eth0:1 Packets leaving the system will use the source address of the interface (or alias interface) you specify in the dev portion of the route. -- ---------------------------------------------------------------------- Jon Lewis *[EMAIL PROTECTED]*| I route System Administrator | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________ === Archive at http://www.open.com.au/archives/radiator/ Announcements on [EMAIL PROTECTED] To unsubscribe, email '[EMAIL PROTECTED]' with 'unsubscribe radiator' in the body of the message.
