cancel
Showing results for 
Search instead for 
Did you mean: 

Internal firewalling problem with TG582n

fraser1973
Newbie
Posts: 1
Registered: 2 weeks ago

Internal firewalling problem with TG582n

I'm running two subnets internally. 10.1.10.0/24 and 10.20.0.0/20 for reasons too tedious to go into, I can't change this.

The router on the primary subnet is 10.1.10.254, my PN supplied TG582n.

I have a Windows RRAS server (VM) with two NICs, one on each network.

The 10.1.10.0/24 side of the RRAS server has its default gateway as the TH582n.

The TH582n has a route added to 10.20.0.0/24 via 10.1.10.15, the RRAS server.

 

I'm seeing lots of this error in the router's firewall logs:

FIREWALL icmp check (1 of 12): Protocol: ICMP Src ip: 10.1.10.15 Dst ip: 10.1.10.13 Type: Echo Reply Code: 0

 

It's not just the same destination address, but is always the same source.

 

If I tracert from the 10.20.0.0 subnet I get the following:

Tracing route to frinkhv03.frinkiac7.net [10.1.10.7]
over a maximum of 30 hops:

  1    <1 ms     *        1 ms  xxxxxxx07.frinkiac7.net [10.20.0.1]
  2     *        *        *     Request timed out.
  3     1 ms     1 ms    <1 ms  xxxxxxx03.frinkiac7.net [10.1.10.7]

 

The request timed outs are the 10.1.10.254 router, if I tracert directly to it, I see this:

 1    <1 ms     *       <1 ms  xxxxxxx07.frinkiac7.net [10.20.0.1]
  2     1 ms     1 ms    <1 ms  xxxxxxx01.frinkiac7.net [10.1.10.254]

Any ideas?