ISC DHCPv6 Relay Agent

John Jason Brzozowski jjmbcom at gmail.com
Tue Dec 9 04:14:44 UTC 2008


So here is another perhaps better usage example of the ISC DHCPv6 Relay
Agent.  Is this scenario I have a dual stack linux host where the relay
agent is installed and running:
./dhcrelay -I -l eth1 -u eth0

eth0 is the server link, eth1 is the client link

Upon starting the ISC DHCPv6 client I see the following log messages:

Dec  8 23:09:32 krakow dhcrelay: Relaying Solicit from
fe80::260:8ff:fed1:d51f port 546 going up.
Dec  8 23:09:32 krakow dhcrelay: send_packet6: Cannot assign requested
address

Looking at the code now to see if I can figure out what is happening, wanted
to see if anyone else is seeing this behavior.

John

On Thu, Dec 4, 2008 at 1:17 PM, John Jason Brzozowski <jjmbcom at gmail.com>wrote:

> I am kicking the tires on the ISC DHCPv6 Relay Agent, here is my scenario:
> client -> relay -> (link0) router (link1) -> server
>
> The client and relay are ISC and on the same link.
>
> A router stands between the client/relay and the server.
>
> I wish to use the relay which is local to the client which has only one
> interface to relay DHCPv6 traffic to the server on a different link.  The
> syntax for the relay agent is not crystal clear to me.  I looking all over
> the place for examples and even perused the code a bit.  Hitting the list
> now to see what sort of feedback I might get
>
> Here is what I used to try and start the relay agent.
>
> The relay agent did not even start using the below:
>
> ./dhcrelay -d -l eth0 -u 2001:558:ff10:8a0:10:252:24:82
>
> This usage does not make sense nor does it do anything:
>
> ./dhcrelay -d -l eth0 -u eth0
>
> Wondering if there is a way to tell the relay agent to listen for traffic
> on interface X and relay or forward traffic to interface Y or IPv6
> address(es)?
>
> John
>



-- 
===================================
John Jason Brzozowski
===================================
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