поскажите, это только у меня так? хост не отвечает по icmp, http отваливается по таймауту при мту 1396
warp:~# tcpdump -i ppp3 host 72.232.29.238
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ppp3, link-type LINUX_SLL (Linux cooked), capture size 96 bytes
18:00:45.780150 IP MYHOST.1098 > forum.ru-board.com.www: F 262484684:262484684(0) ack 2519761120 win 65535
18:00:45.806132 IP MYHOST.rmiregistry > forum.ru-board.com.www: S 2732136969:2732136969(0) win 65535 <mss 1360,nop,nop,sackOK>
18:00:45.974708 IP forum.ru-board.com.www > MYHOST.1098: . ack 1 win 6432
18:00:46.013148 IP forum.ru-board.com.www > MYHOST.rmiregistry: S 2621248254:2621248254(0) ack 2732136970 win 5840 <mss 1460>
18:00:46.025411 IP MYHOST.rmiregistry > forum.ru-board.com.www: . ack 1 win 65535
18:00:46.025463 IP MYHOST.rmiregistry > forum.ru-board.com.www: P 1:433(432) ack 1 win 65535
18:00:46.236606 IP forum.ru-board.com.www > MYHOST.rmiregistry: . ack 433 win 6432
18:00:46.590079 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1:1361(1360) ack 433 win 6432
18:00:46.590130 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
18:00:46.591608 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1361:2721(1360) ack 433 win 6432
18:00:46.591656 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
18:00:49.591513 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1:1361(1360) ack 433 win 6432
18:00:49.591569 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
18:00:55.590578 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1:1361(1360) ack 433 win 6432
18:00:55.590638 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
18:01:07.591477 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1:1361(1360) ack 433 win 6432
18:01:07.591538 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
warp:~# tcpdump -i ppp3 host 72.232.29.238
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ppp3, link-type LINUX_SLL (Linux cooked), capture size 96 bytes
18:00:45.780150 IP MYHOST.1098 > forum.ru-board.com.www: F 262484684:262484684(0) ack 2519761120 win 65535
18:00:45.806132 IP MYHOST.rmiregistry > forum.ru-board.com.www: S 2732136969:2732136969(0) win 65535 <mss 1360,nop,nop,sackOK>
18:00:45.974708 IP forum.ru-board.com.www > MYHOST.1098: . ack 1 win 6432
18:00:46.013148 IP forum.ru-board.com.www > MYHOST.rmiregistry: S 2621248254:2621248254(0) ack 2732136970 win 5840 <mss 1460>
18:00:46.025411 IP MYHOST.rmiregistry > forum.ru-board.com.www: . ack 1 win 65535
18:00:46.025463 IP MYHOST.rmiregistry > forum.ru-board.com.www: P 1:433(432) ack 1 win 65535
18:00:46.236606 IP forum.ru-board.com.www > MYHOST.rmiregistry: . ack 433 win 6432
18:00:46.590079 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1:1361(1360) ack 433 win 6432
18:00:46.590130 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
18:00:46.591608 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1361:2721(1360) ack 433 win 6432
18:00:46.591656 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
18:00:49.591513 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1:1361(1360) ack 433 win 6432
18:00:49.591569 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
18:00:55.590578 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1:1361(1360) ack 433 win 6432
18:00:55.590638 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556
18:01:07.591477 IP forum.ru-board.com.www > MYHOST.rmiregistry: . 1:1361(1360) ack 433 win 6432
18:01:07.591538 IP MYHOST > forum.ru-board.com: ICMP MYHOST unreachable - need to frag (mtu 1396), length 556