06-19-2011 05:30 AM
Hi Experts,
I need to create a VPN to permit only Voice traffic. So i should mention the protocols in the Access rule for VPN, right?
Which portnumbers/protocol should i mention in ACL for permitting only Voice traffic.
Regards,
Vipin
06-19-2011 06:24 AM
when you say only voice traffic i assume its only ip phones and call manager traffic you can specify this as your vpn acl
the reason i am saying open all ports is because they use random ports
in any case no harm in allowing all the traffic between phones and call managers, do you have any particular concern which you are looking to address
06-23-2011 11:28 AM
Hi all,
I am having this same problem. I have the VPN successfully setup between both sites, and the phones at the branch office are able to connect to the HO. However, the phones only register but no tone comes to the phones, neither do they ring out when they are called. The IP phones are Avaya boxes and the call manager is also an Avaya system. I however have an 1800 router and 871 router at the HO and branch office respectively.
I have a 1MB radio link at the HO and 256k at the branch office. The VPN is setup purely for the phones and nothing more.
I suspect the bandwidth of the tunnel may be the problem because when i run a show interface tunnel command, below is what i get:
ROUTER#sh int tun0
Tunnel0 is up, line protocol is up
Hardware is Tunnel
Description: Tunnel to HO
Internet address is 192.168.200.2/30
MTU 1514 bytes, BW 9 Kbit/sec, DLY 500000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source 1.1.1.1, destination 2.2.2.2
Tunnel protocol/transport IP/IP
Tunnel TTL 255
Fast tunneling enabled
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
Last input 00:45:29, output 00:45:31, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1220
Queueing strategy: fifo
Output queue: 0/0 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
1719 packets input, 227853 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
3116 packets output, 479098 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
LINETRALE_ABJ#
Any ideas?
Regards,
Femi
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