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4610SW on Site to Site VPN failing

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samorse

Vendor
Mar 12, 2007
95
US
I have seen several posts, but no real resolution, so here's my issue.

I have an SI with CM2.2, local 46xx phones work fine, but I have one 4610SW on the other end of a Cisco PIX Site to Site VPN that frequently locks-up and/or has no dial tone. I have QOS mappings in all Cisco devices end to end, prioritized Port 1719, Qwest managed DS3 with QOS mappings preserved. I have replaced the phone, patch cable, horizontal cable, power supply, moved switch ports and still having problems. I have verified CLAN and Medpro speed and duplex match the switch ports. I have run a packet capture with Wireshark. What I see is some packet loss, but mostly a lot of duplicate acknowledgements coming from the CLAN to the phone. Sometimes the phone recovers, but most of the time, the user has to reboot the phone. Also have the same issue where pinging from the SI or the Cisco Switch, every third packet fails....haven't seen any real answer to that as well, but it looks like it is now the norm.

Any help would be appreciated.
 
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