[Asterisk-Users] Asterisk Netgear FSM7326P and Cisco 7960 on VLAN

[Allen Niven]

we had problem with 7960 and Netgear but do not recall the version of 
Netgear.....it was solved by upgrading the Netgear to latest rev...

SCollins wrote:
> I had and issue with the FSM732P and DHCP Requests. I would get  
> intermitant connectivity and eventually I would loose connectivity on a  
> port, move the IP phone to a new port and eventually loose 
> connectivity.  The Netgear sounds suspect.
> 
> If all ports are a member of Default VLAN 1, untagged, and the ports 
> are  set to Admit All, the Switch will assign all packets received 
> (untagged  and those with priotization set) to PVID 1. Could it be a 
> VLAN  configuration or Routing problem?
> 
> Maybe it's a known bug that has been resolved with Firmware?
> 
> " FSM7326P Software Version 3.0.3.2
> 
> Issues This Firmware Resolves
> 
> 1. The VLAN priority setting as configured were not working.
> 2. When setting fixed speed at 1000Mbps full-duplex for copper ports, 
> the  switch issued a warning.
> 3. The switch only allowed 8 route entries instead of 16 route entries"
> 
> 
> Hope something I said helps.
> 
> Sean
> 
> 
> 
> 
> 
> 
> 
>  On Tue, 19 Apr 2005 21:16:07 +0100, Ron Wellsted <ron at wellsted.org.uk>  
> wrote:
> 
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Hi,
>>
>> I have just finished a couple of very frustrating days trying to resolve
>> an issue with Asterisk 1.0.5, Netgear FSM7326P and Cisco 7960 phones
>> under SIP using a VLAN for the VoIP traffic.
>>
>> The switch was configured with a default VLAN of 1 and the 7960s were
>> configured for a VLAN of 2.  The 7960s were tested with SIP firmware 7.3
>> and 7.4
>>
>> The symptoms were as follows:
>> 1/ When the phones were idle, every few minutes, the asterisk server
>> would loose MAC/IP address mapping for a phone.  Approx 10 seconds later
>> the mapping would reappear. (checked with "arp -avn")
>>
>> 2/ When in a call, we would randomly loose sound TO the phone.  Sound
>> FROM the phone was OK.  This loss would continue for about 10 seconds.
>>
>> Using ethereal, we sniffed the traffic in and out of the Asterisk box
>> and saw that we were not getting replies to the targeted ARP packets
>> being sent from the asterisk box, only replies to the broadcast ARP  
>> packets.
>>
>> Sniffing a phone revealed that although the ARP packets were correctly
>> tagged as VLAN 2, the phone was replying to the targeted ARP packets on
>> VLAN 1 (!?).  As a result the Asterisk box was (correctly) expiring the
>> arp cache entry when the ttl was reached, then it would send a broadcast
>>  ARP packet which would be responded to by the phone on VLAN 2.
>>
>> I have worked around this be removing the VLANs and by using DHCP
>> reservations to put the phones on a different subnet from the rest of
>> the network.
>>
>> Has anyone else found themselves in a similar situation?  If so, how did
>> you work around it?
>>
>> Is it worth raising a TAC with Cisco?
>>
>> - --
>> Ron Wellsted
>> http://www.wellsted.org.uk
>> ron at wellsted.org.uk
>> FWD:519961  Gossiptel:9309811
>> N 52.567623, W 2.137621
>> -----BEGIN PGP SIGNATURE-----
>> Version: GnuPG v1.4.1 (GNU/Linux)
>> Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
>>
>> iQEVAwUBQmVnB0tP/KMNOfRbAQKgQAf8CI09aPcapNvYD50WiR9s9I2bdGYgzUfI
>> nUqluX1389gLPk4XVuziSKoIMpunJQa2/uaES6NzJkYJk7bYS3MkDh2J6CZK2niZ
>> 2BKBIxwwwkPGhJFYTJE0P/848qLQF6qemM+zJHR/GJr10UpAEKd9ElSyoywHe3NS
>> pVAX8hztsqSM9dpk5cu1+bLLruxSBWVbWgF4GkyjPGXz6U47Ee+x/fDIvi5GGuXf
>> QHrMzAokFycE8omtcx7CR1E2KbSb0H+P3SKroegH7V4PS/3Z45mDcP+owBDMNSSm
>> rcfwNmMPjbwCXxySPu6x07kQo2UfK3ws6e4iZbZGspMFO7AsLq0Q9Q==
>> =JmsL
>> -----END PGP SIGNATURE-----
>> _______________________________________________
>> Asterisk-Users mailing list
>> Asterisk-Users at lists.digium.com
>> http://lists.digium.com/mailman/listinfo/asterisk-users
>> To UNSUBSCRIBE or update options visit:
>>    http://lists.digium.com/mailman/listinfo/asterisk-users
>>
> 
> 
> 

-- 
Allen Niven
GlobalFone
350 Fifth Avenue #6206
Empire State Building
New York, NY 10118
+1-212-678-4381 office
+1-646-246-7415 cell
http://www.GlobalFone.biz
Instant Messaging Accounts
ICQ 137763656
Yahoo Messenger AllenDavidNiven at yahoo.com
MSN Messenger AllenDavidNiven6 at hotmail.com
PLEASE NOTE ---- I NEVER NEVER NEVER RECEIVE EMAILS ON HOTMAIL OR YAHOO