02-23-2013 04:09 AM - edited 03-04-2019 07:07 PM
Does Cisco IOS include a feature to proxy TCP/UDP connections?
I have a legacy device on the LAN that we need to reach remotely, but frustratingly it doesn't support adding a gateway IP.
Regards
Rob
02-23-2013 04:31 AM
Most likely the device supports IP gateway, but is not evident to you how.
You can also probably use NAT for that.
02-23-2013 05:11 AM
Is that device capable of adding static routes. That might help you.
02-24-2013 12:17 AM
If that setting is there, it's not exposed in the settings.
02-23-2013 10:01 AM
Most, if not all Cisco switches and routers support proxy arp. To make things worse, it us usually activated by default. From a networkers perspective this is a rather ugly feature, but it does what you are looking for.
02-23-2013 12:44 PM
Hi,
Just imagine Source A(192.168.1.1/30) has a PCA(192.168.1.2/30) that want to reach remotely Source B (192.168.2.1/24) network PCB(192.168.2.10/24)
On Source B
U will do one to one nat
ip nat inside source static 192.168.2.10 192.168.1.10
On Source-A
Assing a new Subnet to Legacy Device. 192.168.1.1 255.255.255.252
One IP for Legacy Device and One For Router Interface 192.168.1.2 255.255.255.252
ip route 192.168.1.10 255.255.255.255 (next Hop)
ip route 192.168.2.0 255.245.255.255 (next Hop)
On Remote Device
On Router
ip nat inside source static 192.168.2.10 192.168.1.10
That will work.
02-24-2013 06:05 AM
The remote host is on the internet. It's not locally routed.
But you've given me a few ideas to explore, thanks.
02-24-2013 12:20 AM
The remote host isn't adjancent, so proxy arp isn't an option.
Remote PC <-----> Internet <----> Router <----> Device.
02-24-2013 06:46 AM
Do the way that i told u it will work 100%
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