Forum Discussion
Red-Erik_144667
Nimbostratus
NimbostratusSMTP Virtual Server balance Exchange
Hi All,
I'm new to F5 technology so forgive my poor skills and bad english.
I'm tryng to balance SMTP using F5 Big Ip in front of a couple of Exchanange 2010 servers and I use a simple iRrule
to filt...
Red-Erik_144667Nimbostratus
Nimbostratuswhen CLIENT_ACCEPTED { if { not ( [class match [IP::client_addr] equals Allowed_SMTP] ) } { reject } else { snat 172.25.3.123 } } As told before, if I disable the rule I obtain the same result. 6 smtpsend parallel connections with 3 timed out. I tried a more complex iRule with logging such as when RULE_INIT {
v1.0 - basic ACL. October, 2007 Tested on BigIP version 9.4. Purpose: Bind this rule to a network virtual server to simply allow or disallow traffic based on source IP. This rule expects a datagroup named Allowed_SMTP that lists the addresses you wish to allow. By default, traffic will be dropped.} when CLIENT_ACCEPTED {
if { [class match [IP::client_addr] equals Allowed_SMTP] }{
Uncomment the line below to turn on logging.
log local0. "Valid client IP: [IP::client_addr] - forwarding traffic"
snat 172.25.3.123
} else {
Uncomment the line below to turn on logging.
log local0. "Invalid client IP: [IP::client_addr] - discarding"
discard
}
} and I alway read "forwarding traffic but e-mails does not arrive to destination. Is it possible to be in the same proble reported here ?!? https://devcentral.f5.com/questions/basic-smtp-virtual-server I'd prefere not to delete the SMTP virtual server.
