7 Jun
2012
7 Jun
'12
4:32 p.m.
VK4FQ/VK4TTT Sam wrote:
Hey Guys
We have a surplus of cisco routers with dsl wics due to an upgrade.
We have put DSL into a few of our repeater locations and want to put packet (before the
12/13 storm season)
I am looking for a config that will do the ip tunnel encap for 44 net.
If you have done it please email me vk4fq(a)smellyblackdog.com.au with destructions please
I have studied the matter in the past and I think it will be a bit difficult.
Cisco support only a single source and destination address for an IPIP tunnel interface.
In other systems (NOS, Linux) the idea usually is that you setup a single tunnel
interface and have a routing table that tells the system where to send packets for
a certain subnet. But in a Cisco I think you would need to configure a separate
tunnel interface for each gateway station.
The problem is that the station list is not static, so you need to write some script
that generates IOS config commands to insert, delete and modify tunnel interfaces to
track the changes in the encap.txt.
There are multipoint tunnels in IOS, like DMVPN, but those protocols are not in use
in the amateur IP net. (unfortunate, because it could automate the entire encap.txt
hassle and solve all problems for people with dynamic addresses)
Correct me if I am wrong... We have an unused 887 at work that I would probable be
able to get donated for home use, but I have hesitated to take the plunge.
Rob