DrayTek UK Users' Community Forum
Help, Advice and Solutions from DrayTek Users
NAT Active Sessions
- bradley porter
- Topic Author
- Offline
- Junior Member
Less
More
- Posts: 75
- Thank you received: 0
05 Oct 2010 15:54 #64097
by bradley porter
Kind regards,
Bradley Porter
NAT Active Sessions was created by bradley porter
Dear all,
I noticed that the 'NAT Active Sessions Table' seems to keep NAT sessions alive dispute the device being unplugged for a few minutes.
For example, I had a problem with my VoIP device and looked at the 'NAT Active Sessions Table' to see what was going on. I then unplugged the device and noticed that this did NOT free up the NAT address. I assumed that when the device was unplugged the table would clear out its details.
Am I missing something?
Thank you.
Brad
I noticed that the 'NAT Active Sessions Table' seems to keep NAT sessions alive dispute the device being unplugged for a few minutes.
For example, I had a problem with my VoIP device and looked at the 'NAT Active Sessions Table' to see what was going on. I then unplugged the device and noticed that this did NOT free up the NAT address. I assumed that when the device was unplugged the table would clear out its details.
Am I missing something?
Thank you.
Brad
Kind regards,
Bradley Porter
Please Log in or Create an account to join the conversation.
- voodle
- Offline
- Big Contributor
Less
More
- Posts: 1139
- Thank you received: 0
05 Oct 2010 17:03 #64100
by voodle
Replied by voodle on topic NAT Active Sessions
The router has a rather long TCP session time out which won't clear sessions as devices are disconnected, only when they time out.
You can change that through the telnet interface, the command is "portmaptime". If you don't know how to access the router's telnet interface or the commands, there's a telnet guide on the draytek UK downloads page.
You can change that through the telnet interface, the command is "portmaptime". If you don't know how to access the router's telnet interface or the commands, there's a telnet guide on the draytek UK downloads page.
Please Log in or Create an account to join the conversation.
- bradley porter
- Topic Author
- Offline
- Junior Member
Less
More
- Posts: 75
- Thank you received: 0
05 Oct 2010 17:12 #64101
by bradley porter
Kind regards,
Bradley Porter
Replied by bradley porter on topic NAT Active Sessions
Thank you for the reply. Much appreciated.
My current settings are as below:
Current setting
TCP Timeout : 86400 sec.
UDP Timeout : 180 sec.
IGMP Timeout : 10 sec.
TCP WWW Timeout: 60 sec.
TCP SYN Timeout: 60 sec.
So it looks like the TCP timeout is set to 24 hours.
Is that not a little excessive?
My current settings are as below:
Current setting
TCP Timeout : 86400 sec.
UDP Timeout : 180 sec.
IGMP Timeout : 10 sec.
TCP WWW Timeout: 60 sec.
TCP SYN Timeout: 60 sec.
So it looks like the TCP timeout is set to 24 hours.
Is that not a little excessive?
Kind regards,
Bradley Porter
Please Log in or Create an account to join the conversation.
- voodle
- Offline
- Big Contributor
Less
More
- Posts: 1139
- Thank you received: 0
05 Oct 2010 23:14 #64105
by voodle
Replied by voodle on topic NAT Active Sessions
Possibly, but if you're seeing problems with NAT sessions on a VoIP thing, that'll usually be UDP traffic.
Please Log in or Create an account to join the conversation.
Moderators: Sami
Copyright © 2024 DrayTek