Forum Discussion
NimbostratusClosed Caption implementation
I'm trying to implement a NAT that points to a Closed Caption Service. I'm using a Virtual Server with Standard Profile, TCP Protocol and a SNAT. Service port = 0.
Actually, the NAT doesn't cross the Big-IP LTM so it works fine. the closed caption service uses its default route to reach the firewall with the configured NAT. The NAT is configured in the object with the LAN IP of the closed caption device. I mean, it is a different path of the Big IP LTM system.
When I test my configuration it appears to works fine, but it only works once. Unexpectly it stops to work and if We try to send more text to the closed caption device it can't be viewed into the video signal although it seems that the source is sending the data.
Is there anybody who has implemented a closed caption service?
Thanks for your help.
3 Replies
Kiozs_131042Altocumulus
Hi Buddy,
can you provide tcpdump using following command when you sending the text to Virtual server:
tcpdump -i :nnn -s0 -w /var/tmp/testdump.dmp
and attached your tcpdump to this post.
It will be great, if you can provide a simple network diagram.
Please disable NAT configuration on LTM if there's any for the Closed Caption Service.
- boneyard
MVP
i don't think you can add files here so you probably end up posting some of the tcpdump lines here.
- nitass
Employee
tcpdump -i :nnn -s0 -w /var/tmp/testdump.dmp
i guess interface 0.0 is truncated by formatting. i understand what Kiozs replied is something like this:
tcpdump -i 0.0:nnn -s0 -w /var/tmp/testdump.dmp
