Forum Discussion
f5 snat list translation and issue with telnet and wget
i've this situation:
server as01 -> f5 -> external system
- only the f5 has visibility of external system (
[root@f5:Active] config tcptraceroute
10.193.91.198 -p 80
traceroute to 10.193.91.198 (10.193.91.198), 30
hops max, 40 byte packets
1 (10.193.37.1) 0.613 ms
* (10.193.37.1) 0.992 ms
2 * * *
3 * * *
4 * * *
5 (10.193.91.198) 15.436
ms 15.296 ms 15.325 ms
[root@f5:Active] config telnet 10.193.91.198
80
Trying 10.193.91.198...
Connected to 10.193.91.198 (10.193.91.198).
Escape character is '^]'.
^]
telnet> quit
but from the server as01 i've a strange issue:
- ping works
- tcptraceroute with specific port 80 works
- telnet (or wget) to specific port 80 doesn't work
[root@SC-MUC-tgepreas01 ~] ping 10.193.91.198
PING 10.193.91.198 (10.193.91.198) 56(84) bytes
of data.
64 bytes from 10.193.91.198: icmp_seq=1 ttl=255
time=0.205 ms
64 bytes from 10.193.91.198: icmp_seq=2 ttl=255
time=0.160 ms
64 bytes from 10.193.91.198: icmp_seq=3 ttl=255
time=0.210 ms
--- 10.193.91.198 ping statistics ---
3 packets transmitted, 3 received, 0% packet
loss, time 2000ms
rtt min/avg/max/mdev = 0.160/0.191/0.210/0.027
ms
[root@SC-MUC-tgepreas01 ~] tcptraceroute
10.193.91.198 -p 80
traceroute to 10.193.91.198 (10.193.91.198), 30
hops max, 40 byte packets
1 sctgepreextservitds
(10.193.91.198) 0.561 ms 0.542 ms 0.530 ms
[root@SC-MUC-tgepreas01 ~]
[root@SC-MUC-tgepreas01 ~]
[root@SC-MUC-tgepreas01 ~] telnet
10.193.91.198 80
Trying 10.193.91.198...
telnet: connect to address 10.193.91.198:
Connection refused
telnet: Unable to connect to remote host:
Connection refused
[root@SC-MUC-tgepreas01 ~]
any ideas?
can anyone help me please?
thanks in advice
- Rise_77519Nimbostratus
Hi,
I think that you should also create a network forwarding vs on the f5. all vlan should enabled for the server vlan and destination ip should set 0.0.0.0 and net mask 0.0.0.0 .
- emilio_104458Nimbostratushi Rise,
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