imap errors with vpn connections

Mark Busby redtick at
Fri Jul 27 17:05:25 UTC 2007

  I am running Freebsd 6.2-p6 with eGroupWare-1.2.106_1, dovecot-1.0.r2 and mpd-3.18_5.
  When I connect from home via vpn to the server then try to check mail thru egroupware I get imap authentication errors. Anyone at work checking their mail will also get the same error,  kill the vpn connection everything works fine.  
  I would like to be able to work from home and not block others from checking their mail.
  Below are config files and rule sets I have configured.
  nothing changed from default config.
  ipfw rules
  allow gre from any to x.x.x.x in recv dc0
allow gre from any to any out xmit dc0
allow ip from any to any via ng0
allow ip from any to any via ng1
allow ip from any to any via ng2
allow ip from any to any via ng3
                load pptp0
                load pptp1
                load pptp2
                     new -i ng0 pptp0 pptp0
                   set iface disable on-demand
                   set iface enable proxy-arp
                   set iface idle 1800
                   # set bundle disable multilink
                   set link yes acfcomp protocomp
                   set link no pap chap
                   set link enable chap
                   set link keep-alive 10 60
                   set link mtu 1460
                   set ipcp yes vjcomp
                   set ipcp ranges
                   set ipcp dns
                   set ipcp nbns
                   set bundle enable compression
                   set ccp yes mppc
                   set ccp yes mpp-e40
                   set ccp yes mpp-e128
                   set ccp yes mpp-stateless

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