In some email I received from Mike F, sie wrote: [ Charset ISO-8859-1 unsupported, converting... ] > I'm running a NetBSD/SPARC firewall with IPFilter on my DSL line, and > I'm having issues redirecting incoming smtp traffic to a server on my > internal network. From some hosts, all mail passes every time, > but from other hosts some mail passes, while some mail does not succeed. > I'm going to try to provide as much information as possible, since this > seems (to me at least) to be a hard-to-diagnose problem. I'll start with > a tcpdump taken during attempted mail delivery from one of the known > affected hosts. ... > map pppoe0 192.168.1.0/24 -> 0.0.0.0/32 portmap tcp/udp 30000:60000 mssclamp 1440 > map pppoe0 192.168.1.0/24 -> 0.0.0.0/32 mssclamp 1440 > rdr pppoe0 0.0.0.0/0 port 80 -> 192.168.1.13 port 80 tcp > rdr pppoe0 0.0.0.0/0 port 81 -> 192.168.1.16 port 80 tcp > rdr pppoe0 0.0.0.0/0 port 25 -> 192.168.1.13 port 25 tcp > rdr pppoe0 0.0.0.0/0 port 10022 -> 192.168.1.13 port 22 tcp
If you add "mssclamp 1440" on the end of the rdr lines, does this help? Darren
