Leathal
Premium
join:2002-02-09
Toronto, ON
| reply to elnino
Re: [Config] VPN issues
said by elnino  :Generally speaking, the problem is either with their home router or ISP. The home router isn't IPSEC passthru compatible or isn't passing NAT-T. I get a call like this every couple months. I go back and check the logs and on our VPN Concentrator there is no traffic received but there is traffic sent. Normally when I have them plug directly into their cable modem, it works. Once behind their router, it stops working. I guess we'll have to phone Cisco and speak to someone with some intelligence as it's obvious I came to the wrong place again... (sigh)
Leathal |
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tubbynet
more voices, more choices
Premium
join:2008-01-16
Mesa, AZ
 ·Sprint Mobile Broa..
 ·Cox HSI
 ·FrontierNet Intern..
| Just a friendly reminder:
These forums are NOT tech support. It is a support community where volunteers come together to paruse and solve problems. It is NOT assistance whenever you need it. If someone can help you, they will try their best. elnino gave you an answer that solved his problem based on his experience. There is no reason to insult him.
If you needed it immediately, you could have called TAC as soon as the problem manifested itself. There is a lot of "intelligence" here, we just aren't paid to provide support to end users. |
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elnino
join:2006-08-27
Akron, OH
| reply to Leathal
Like I said before, in my experience, it has never been a problem with our Cisco PIX or VPN Concentrator, it was always a problem with the connection at the client's home. In some cases, the cable modems themselves had firewalls built in that were also blocking ports.
Let's try some troubleshooting questions.... Is it always the same people that have problems with VPN? Have you "problem" laptops from a known "good" internet connection? Are they plugging into home routers or directly into the cable modem? Do they have firewalls active and if so, what ports are open? Are IPSec (protocol 50), UDP 500, UDP 4500 and UDP 10000 open on your users' home routers/firewalls?
-Brandon |
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