07-27-2009 12:24 AM - edited 03-04-2019 05:33 AM
Hi All,
Any ideas to why there might be some empty nat translations in my nat table. By this I mean a nat entry that shows up with no protocol defined and no outside local and outside global.
core2-cr-mel#sh ip nat trans | inc 172.16.75.139
Pro Inside global Inside local Outside local Outside global
--- 210.15.240.9 172.16.75.139 --- ---
tcp 210.15.240.9:5380 172.16.75.139:5380 61.137.191.125:80 61.137.191.125:80
Thanks.
Andy
07-27-2009 01:05 AM
Hello Andy,
the line should be there to represent a static NAT entry
like
--- --- --- 172.24.156.1 217.x.y.137
because there is a line like
ip nat outside source static 217.x.y.137 172.24.156.1
I can see this in a router of one of our extranets
It should be a sort of placeholder
Hope to help
Giuseppe
07-27-2009 04:44 PM
Hi Giuseppe ,
That's the odd thing. It's not a static nat entry. I have not configured any static nat.
What I pasted is exactly how it appears in the nat table.
core2-cr-mel#sh ip nat trans
Pro Inside global Inside local Outside local Outside global
--- 210.15.240.9 172.16.75.139 --- ---
The first column is the Protocol field, so either TCP or UDP but it's blank (---). And the last two columns are the Outside local and Outside global and these are also blank.
Any ideas?
Thanks.
Andy
07-28-2009 01:48 AM
Hello Andy,
this is really strange.
no ideas at the moment
Hope to help
Giuseppe
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