[pptp-server] Re: Connection is on, communication is off...

[Vlad Strezhnev]

Following my yesterday's posting, here are some additional debug info.
This is form firewall log.
It shows that for about 10 min everithhing was OK, then suddenly
ip_masq_in_gre() lookups start failing.
This state could last for hours with active connection and no
communication.
Any ideas?

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Dec 18 14:04:58 SparcFirewall kernel: ip_masq_gre(): creating GRE masq
for [PPTPD server IP] -> [Remote IP] CID=C000 MCID=58E1
Dec 18 14:04:58 SparcFirewall kernel: ip_masq_gre(): O-routed from
[Firewall IP]
Dec 18 14:04:58 SparcFirewall kernel: ip_demasq_gre(): [Remote IP] ->
[Firewall IP] CID=0 VER=81 PROTO=880B
Dec 18 14:04:58 SparcFirewall kernel: ip_masq_in_get_gre(): lookup
[Remote IP]->[Firewall IP] CID=58E1 OK
Dec 18 14:04:58 SparcFirewall kernel: ip_demasq_gre(): I-routed to
[PPTPD server IP] CID=0
Dec 18 14:04:58 SparcFirewall kernel: ip_masq_gre(): [PPTPD server IP]
-> [Remote IP] CID=C000 VER=81 PROTO=880B
Dec 18 14:04:58 SparcFirewall kernel: ip_masq_gre(): O-routed from
[Firewall IP]
.....

Dec 18 14:11:23 SparcFirewall kernel: ip_masq_in_get_gre(): lookup
[Remote IP]->[Firewall IP] CID=58E1 OK
Dec 18 14:11:23 SparcFirewall kernel: ip_demasq_gre(): I-routed to
[PPTPD server IP] CID=0
Dec 18 14:11:23 SparcFirewall kernel: ip_masq_gre(): [PPTPD server IP]
-> [Remote IP] CID=4000 VER=81 PROTO=880B
Dec 18 14:11:23 SparcFirewall kernel: ip_masq_gre(): O-routed from
[Firewall IP]
Dec 18 14:17:21 SparcFirewall kernel: ip_demasq_gre(): [Remote IP] ->
[Firewall IP] CID=0 VER=1 PROTO=880B
Dec 18 14:17:21 SparcFirewall kernel: ip_masq_in_get_gre(): lookup
[Remote IP]->[Firewall IP] CID=0 FAIL
Dec 18 14:17:21 SparcFirewall kernel: ip_demasq_gre(): [Remote IP] ->
[Firewall IP] CID=0 no masq table, discarding
Dec 18 14:20:32 SparcFirewall kernel: ip_demasq_gre(): [Remote IP] ->
[Firewall IP] CID=0 VER=1 PROTO=880B
Dec 18 14:20:32 SparcFirewall kernel: ip_masq_in_get_gre(): lookup
[Remote IP]->[Firewall IP] CID=0 FAIL
Dec 18 14:20:32 SparcFirewall kernel: ip_demasq_gre(): [Remote IP] ->
[Firewall IP] CID=0 no masq table, discarding
Dec 18 14:20:32 SparcFirewall kernel: ip_demasq_gre(): [Remote IP] ->
[Firewall IP] CID=0 VER=1 PROTO=880B
Dec 18 14:20:32 SparcFirewall kernel: ip_masq_in_get_gre(): lookup
[Remote IP]->[Firewall IP] CID=0 FAIL
Dec 18 14:20:32 SparcFirewall kernel: ip_demasq_gre(): [Remote IP] ->
[Firewall IP] CID=0 no masq table, discarding
......
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