About JamesS4

JamesS4 · 06-21-2019

Hi, I am attempting to do a packet capture of traffic going across an IPSEC VPN tunnel to troubleshoot an issue (see here if interested: https://community.cisco.com/t5/routing/ipsec-tunnel-only-works-one-way/m-p/3876972#M316944), but none of it is sh...

JamesS4 · 06-20-2019

Hi All,Having issue with IPSEC tunnel. I only control our side, other side is vendor side. If we initiate connection to them (e.g. telnet) we can connect and pass traffic with no issue. If they try to telnet to us, they get timeout. they say that ...

JamesS4 · 01-11-2019

Pretty basic issue here (core problem of a larger issue)... I have a port forward setup: ip nat inside source static tcp 198.168.1.10 1111 [our public IP address] 1111 extendable Works fine. But I would like to NAT the source IP to be an intern...

JamesS4 · 01-09-2019

Hi, looking for assistance on an issue. Our Cisco ISR router has three active interfaces -- one inside interface (local LAN), one outside interface to Internet, and one outside interface that is point to point connection to a colocated site. The ...

JamesS4 · 03-15-2018

Hi All, I have a rather convoluted issue, which I think may have a very quick solution, but I do not have the expertise to figure this out. We have our own local network (let's call it Network 1) connecting to two vendor networks. One connects...

JamesS4 · 06-25-2019

I selected two of Giuseppe's replies as solutions, since they are both correct. 1) VPN tunnel packet capture can only help to detect traffic travelling across the tunnel endpoints. There isn't a way to directly capture traffic from device endpoint...

JamesS4 · 06-25-2019

Gisueppe, Rick, This is resolved. It was as simple as changing the port. Forgive the late reply but was awaiting the vendor side to make firewall change on their side and then test connection and confirm. The takeaways here are: 1) I never stated at...

JamesS4 · 06-21-2019

We opened an unused port on 10.10.10.50 and asked them to try it. fingers crossed!

JamesS4 · 06-21-2019

attempting to telnet to 30001!!! I think (hope) that is the problem?!

JamesS4 · 06-21-2019

what i do not understand is why do we see this traffic at all in the capture? 38.38.38.98 -> 198.198.4.53 0 BE TCP shouldn't this NAT not be occurring based on the NAT ACLs we have setup? p7router1#sh ip nat transPro Inside global Inside local Outsid...

Member Since	‎03-15-2018 01:13 PM
Date Last Visited	‎06-26-2019 12:04 AM
Posts	30
Total Helpful Votes Received	5

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packet capture IPSEC VPN tunnel traffic

IPSEC Tunnel only works one way

how to source nat from public to private ip?

how to source NAT outside interface to outside interface?

port forwarding to VPN LAN

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