Forum Discussion
Kalpesh_48932
Jul 09, 2012Nimbostratus
Port forwarding for SMTP
Hello,
i have done port forwarding for SMTP traffic. for this I have configured VIP on port 25 and pool members of this VIP on port 2500.
however when i test i get this TWO below diff results.
1. ON DIRECT NODE :
$ telnet 10.155.63.126 2500
Trying 10.155.63.126...
Connected to A92SV00699JIV (10.155.63.126).
Escape character is '^]'.
220 localhost ESMTP SubEthaSMTP
HELO domain
250 localhost
QUIT
221 Bye
Connection closed by foreign host.
2. VIA VIP :
$ telnet 10.155.65.43 25
Trying 10.155.65.43...
Connected to uat.my.saint-gobain.com (10.155.65.43).
Escape character is '^]'.
-------------- here “220 localhost ESMTP SubEthaSMTP” is missing !!!!!!!!!!!!!!!!!!!
HELO domain
220 localhost ESMTP SubEthaSMTP
250 localhost
QUIT
-------------- here no reaction/resonse from the node
can anyone please help?
- nitassEmployee2. VIA VIP :
[root@ve10:Active] config b virtual bar list virtual bar { snat automap pool foo destination 172.28.19.79:25 ip protocol 6 } [root@ve10:Active] config telnet 172.28.19.79 25 Trying 172.28.19.79... Connected to 172.28.19.79 (172.28.19.79). Escape character is '^]'. 220 mail.f5.com ESMTP HELO me 250 mail.f5.com QUIT 221 mail.f5.com Connection closed by foreign host.
- Kalpesh_48932NimbostratusHi Nitass
- nitassEmployee220 should be above HELO domain. sorry i might misunderstand i.e. i thought you typed HELO too fast.
[root@ve10:Active] config telnet 172.28.19.79 25 Trying 172.28.19.79... Connected to 172.28.19.79 (172.28.19.79). Escape character is '^]'. HELO me 220 mail.f5.com ESMTP 250 mail.f5.com
- Kalpesh_48932NimbostratusThis is the current setting I have on F5.
- nitassEmployeewhy do you use http profile for smtp traffic? does it really work??
- Kalpesh_48932NimbostratusI tried removing HTTP profile.
- nitassEmployeeCan you tell me tcpdump command to display capture during test? I want to test connection on VIP. can you try this?
- Kalpesh_48932NimbostratusThanks Nitass, but issue is resolved now..after removing http profile.
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