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thomas.waterman
Beginner

Cisco 1921 won't pass Traffic

Hello all. I am hoping someone can point out in the attached config where I have cause a problem. I can telnet to the router and ping places on the inside and outside. However when I connect a laptop to the inside interface I can ping to the outside for a bit but can't open a web page and then connectivity is gone all together. At first I thought it was a NAT issue but I know I am good on that front. I have attempted to change the speeds and duplex settings on the outside interface but it dioes not seem to help. Again if I take the cable from the outside interface and plug it into a laptop it works fine. The thing that makes me wonder is why can I connect to the outside interface and configue it just fine?

Thank you for your assistance.

Tom

1 ACCEPTED SOLUTION

Accepted Solutions

Can you try replacing this

ip nat pool IOWNAT xx.37.0.211 xx.37.0.211 netmask 255.255.255.128

ip nat source list 1 pool IOWNAT overload

!

access-list 1 permit 192.168.6.0 0.0.0.255 log

with this

access-list 1 permit 192.168.6.0 0.0.0.255 any

ip nat inside source list 1 interface gi0/1 overload

check with "sh ip nat tran"

View solution in original post

4 REPLIES 4
Reza Sharifi
Hall of Fame Expert

Your config looks good.  Can you try adding this command to the inside interface and test again?

ip tcp adjust-mss 1412

OK I added that to the inside interface but still no luck.

Can you try replacing this

ip nat pool IOWNAT xx.37.0.211 xx.37.0.211 netmask 255.255.255.128

ip nat source list 1 pool IOWNAT overload

!

access-list 1 permit 192.168.6.0 0.0.0.255 log

with this

access-list 1 permit 192.168.6.0 0.0.0.255 any

ip nat inside source list 1 interface gi0/1 overload

check with "sh ip nat tran"

Thank you so much for the help! It works perfectly now!