slackware 14, vpn or iptables disconnect issue?
Hi, I have Slackware 14.0/3.2.29-smp stable and up to date computer running firewall from
Easy Firewall Generator for IPTables. I had Slackware 12 but reinstalled to Slackware 14. I have house lan do static ip addresses and everything connected wired and wirelessly works fine, with same rc.firewall from Slackware 12. Sometimes I need to work from home and have to vpn to work network. This all worked fine for last couple years. Since last time I worked from home I now have Slackware 14 and there is a new vpn client, Cisco AnyConnect Secure Mobility Client Version 3.1.01065. Now vpn is disconnecting about every 10 minutes and I have to reconnect. I spoke with work help desk and they said to connect directly to isp by dhcp. This worked fine with no disconnects. Network staff says everything is correct on their end and something on my end is causing the disconnects. I checked the vpn client settings and there is really nothing to configure. What I need help with, what I'm asking for here is, is there something with Slackware 14 that might be causing the vpn disconnects OR is it something with new vpn client that I might need to do something with iptables. Thanks |
Days ago, I setup a wifi router using my old IBM x31 laptop, and ran into similar situation, but the vpn protocal I used is pptp, I solved this by:
modprobe ip_nat_pptp |
Hi kite, thanks for suggestion.
On my system only _nat_pptp was nf_nat_pptp tried it anyway, same problem, vpn disconnects after about 10 minutes. BTW looks like I didn't mention the vpn client is on windows xp service pack 3 computer. I also found couple posts that said "I don't know why it worked when I did..." those were: /sbin/modprobe tun iptables -t filter -A INPUT -j REJECT --reject-with icmp-port-unreachable I tried those and still have the disconnect. I found a few posts that suggest adding rules to iptables for port 500, 4500, 1723, 10000 but these posts are like a few years old and I think this vpn client is very new. As I said before this all worked before Slackware 14 and the newer vpn client. I know I didn't do anything special when I had the Slackware 12 computer running because I was surprised I was able to vpn without doing anything, I connected to my home network, launched the vpn client and it worked. |
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