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Horms
Many thanks for your reply, and sorry for the delay in replying back.
>I suspect the two most likely causes of this problem
>are some nefilter rules that you don\'t know about
How would I tell what netfilter rules are in place? Sorry, it\'s a very basic
question I know.
>or you aren\'t actually connecting to the box at all
>when you make the inbound connections.
>Try running tcpdump with the -e option to try and verify
>just which machine you are making connections to.
If I run ping from my webserver, that all works ok (IP 10.80.18.27) to the
server with the problem (IP 10.80.18.207) and then run tcpdump -e host
10.80.18.207 I get the following output repeated over and over.
14:55:10.355955 0:50:4:67:ab:9b 0:6:5b:f6:63:73 ip 98: edm_bfhxx_fp002 >
10.80.18.207: icmp: echo request (DF)
14:55:10.355955 0:6:5b:f6:63:73 0:50:4:67:ab:9b ip 98: 10.80.18.207 >
edm_bfhxx_fp002: icmp: echo reply
If I try the same exercise in the opposite direction I get the following output
over and over again
13:39:32.000864 0:6:5b:f6:63:73 Broadcast arp 42: arp who-has 10.80.18.27 tell
edm_bfhxx_wb005
13:39:33.000793 0:6:5b:f6:63:73 Broadcast arp 42: arp who-has 10.80.18.27 tell
edm_bfhxx_wb005
Finally if I try tcpdump -e host 10.80.23.6 which is th machine i\'m connected
via ssh, I get
13:42:30.161070 0:6:5b:f6:63:73 0:c0:9f:6:4d:1 ip 338: edm_bfhxx_wb005.ssh >
10.80.23.6.4325: P 69184:69468(284) ack 1 win 9648 (DF) [tos 0x10]
13:42:30.167807 0:c0:9f:6:4d:1 0:6:5b:f6:63:73 ip 74: 10.80.23.6.4325 >
edm_bfhxx_wb005.ssh: P 1:21(20) ack 69468 win 17236 (DF)
I think this means I\'m connected to the correct box but that the server is
having problems with the IP address. Any thoughts on where to go next?
Paul
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