Normal mode of operation? - Clarifying on 2nd Try.

Sorry for double posting but the original was just too screwed up.

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I'm wondering if the way that I am running the xinetd server is using a 
feature or programing accident. I didn't find any info or examples where 
others are doing the same thing.

I am setting up my config file to allow two different service id's to both use 
the same port. One service id restricts the incoming connection addresses to 
range A while the other service id restricts them to range B. Neither range 
overlaps. Both services use the same protocol, TCP. It seems to work OK this 
way but is this an intentional mode of operation by the designers? In other 
words, is it semi-safe to assume that it will still work this way on the next 
revision of the program? Another thought comes to mind - what will be the out 
come in all cases if the ranges do overlap? Here are my two services in 
question:

# default: on
# description: Qmail SMTP service for delivering and receiving mail via \
#       the SMTP protocol. Provides local service with relaying.
service smtp
{
  disable = no
  id = smtp-loc
  port = 25
  only_from = 192.168.0.0/16 127.0.0.1
  socket_type = stream
  protocol = tcp
  wait = no
  env = RELAYCLIENT=
  passenv =
  user = qmaild
  flags = NOLIBWRAP
  server = /var/qmail/bin/tcp-env
  server_args = -R /var/qmail/bin/qmail-smtpd
  log_on_success = HOST DURATION PID
  log_on_failure = HOST
  nice = 0
  instances = 60
  cps = 25 5
  rlimit_as = 2M
}

# default: on
# description: Qmail SMTP service for delivering and receiving mail via \
#       the SMTP protocol. Provide public service with relaying denied.
service smtp
{
  disable = no
  id = smtp-pub
  port = 25
  no_access = 192.168.0.0/16 127.0.0.1
  socket_type = stream
  protocol = tcp
  wait = no
  env =
  passenv =
  user = qmaild
  flags = NOLIBWRAP
  server = /var/qmail/bin/tcp-env
  server_args = -R /var/qmail/bin/qmail-smtpd
  log_on_success = HOST DURATION PID
  log_on_failure = HOST
  nice = 0
  instances = 60
  cps = 25 5
  rlimit_as = 2M
}

Thanks for any comments, opinions, pointers, etc.

-Tony Thedford

-- 
The Poems, all three hundred of them, may be summed up in one of their 
phrases:
"Let our thoughts be correct".
		-- Confucius