[Asterisk-Users] Cisco AS5XXX to asterisk debugging.

Jorge Verastegui G jorge at redcetus.com
Sun Dec 12 16:42:08 MST 2004


Excuse the insistence but I am more than one week with this problem, and
I do not have any idea to solve it.

You know if the configuration with GK in the Cisco, can be interfering
with the RTP traffic?  


Thanks in advance



On Fri, 2004-12-10 at 08:37, Tenorio, Leandro wrote:
> Pls, post your Cisco and * config files.
> 
>  
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Jorge
> Verastegui G
> Sent: Friday, December 10, 2004 12:30 AM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] Cisco AS5XXX to asterisk debugging.
> 
> Hi, 
> 
> I have a serious problem to configure Cisco AS5XXX and Asterisk , 
> 
> I trying to use asterisk for 
> 
> PSTN(A)----> Cisco AS5xxx ----> ASterisk---->PSTN(B) 
> 
> (No Nat, no Firewall)
> 
> I hear (on the PSTN(A)) clearly what the other person is saying, but the
> other person (on the PSTN(B) side) hears nothing from PSTN(A).
> 
> I use tcpdump for debug de rtp trafic, and ouput contains 
> 
> 
> 19:06:00.741293 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:00.763133 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:00.740415 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:00.810312 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:00.860314 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:00.980351 IP (tos 0x0, ttl  64, id 180, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.000313 IP (tos 0x0, ttl  64, id 181, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.014822 IP (tos 0x68, ttl 255, id 1, offset 0, flags [none],
> proto 17, length: 164) y.y.y.y.18975 > x.x.x.x.19927: UDP, length 136
> 19:06:01.020312 IP (tos 0x0, ttl  64, id 182, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.040302 IP (tos 0x0, ttl  64, id 183, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.060343 IP (tos 0x0, ttl  64, id 184, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.083311 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.128314 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.130316 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.165318 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 19:06:01.186312 IP (tos 0x0, ttl  64, id 179, offset 0, flags [DF],
> proto 17, length: 60) x.x.x.x.19926 > y.y.y.y.18974: [no cksum] UDP,
> length 32
> 
> 
> Where
> 
>  x.x.x.x = ip address of Astersik
>  y.y.y.y = ip address of Cisco
> 
> 
> Two types of codecs were proven ( ulow, g729 ).
> 
> When use the Asterisk with Sip phones everything works well.
>  
>         SipPhone------>Asterisk------->PSTN(B)     
> 
> The configurations, are the usual ones (from the wiki). the version of
> asterisk is 1.0.3, the linux is  FC2.
> 
> 
> Please help me.  




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