6 Mar
2016
6 Mar
'16
5:08 p.m.
All,
I've been observing the following:
a. - gateways sending RFC1918 addresses in the inside header (e.g.
192.168.11.0/24)
b- gateways encapsulating their commercial IP in the inside header.
While this reply is sent in case B, my gateway, as well as AMPRGW,
receives ICMP destination port unreachable responses for these requests.
Since the related traffic is an IP PROTOCOL 4 - IPENCAP packet to my
commercial IP, and not the internal TCP, UDP, etc. packet addressed to
my 44LAN.
It also produces unneeded traffic to your border which is statefully
firewalled. - F1SCA's gateway is producing such traffic
Please let me know if you discover the anomaly (and/or how it is solved).
- Lynwood
KB3VWG