I've seen this behavior before (a few years back). Moved off of VzW for
this reason (i'm lazy to implement workarounds).
IIRC when i investigated, the ALG was trying to not do something nefarious
but just poorly implemented.
On Tue, Sep 22, 2015 at 12:51 PM, Christopher Morrow <
On Tue, Sep 22, 2015 at 12:22 PM, Christopher Morrow
wrote:
> On Tue, Sep 22, 2015 at 12:03 PM, Mark Stevens wrote:
>> Hi All,
>>
>> Has anyone seen that something (most likely an alg) on Verizon's LTE/4G
>> network is rewriting SIP headers,in
TLS would be perfect but it is not viable at this point. I guess with
Verizon being what they are, it is time to start working on a SIP over
TLS implementation.
On 9/22/2015 12:24 PM, joel jaeggli wrote:
On 9/22/15 9:03 AM, Mark Stevens wrote:
Hi All,
Has anyone seen that something (most
/4G and SIP Header Manipulation
Hi All,
Has anyone seen that something (most likely an alg) on Verizon's LTE/4G network
is rewriting SIP headers,in particular From Tag identifiers? We cannot make a
SIP call from our cellphones (using cellular data) beyond
30 seconds because the TAGs
Message--
From: Mark Stevens
Sender: NANOG
To: nanog@nanog.org
Subject: Verizon Wireless LTE/4G and SIP Header Manipulation
Sent: Sep 22, 2015 12:03
Hi All,
Has anyone seen that something (most likely an alg) on Verizon's LTE/4G
network is rewriting SIP headers,in particular From Tag
The TAG unique identifier is being changed and this only happens through
VZ LTE networks, not wired networks or even other cellular data networks
(Sprint, ATT, T-Mobile)
Their phones are IPV6 so the packets are getting converted to IPV4 so it
is either happening there or there is a global ALG
On Tue, Sep 22, 2015 at 4:16 PM, Mark Stevens wrote:
> The TAG unique identifier is being changed and this only happens through VZ
> LTE networks, not wired networks or even other cellular data networks
> (Sprint, ATT, T-Mobile)
> Their phones are IPV6 so the packets are
> On Sep 22, 2015, at 4:24 PM, Christopher Morrow
> wrote:
>
> On Tue, Sep 22, 2015 at 4:16 PM, Mark Stevens wrote:
>> The TAG unique identifier is being changed and this only happens through VZ
>> LTE networks, not wired networks or even other
Hi All,
Has anyone seen that something (most likely an alg) on Verizon's LTE/4G
network is rewriting SIP headers,in particular From Tag identifiers? We
cannot make a SIP call from our cellphones (using cellular data) beyond
30 seconds because the TAGs are rewritten and the destination
On Tue, Sep 22, 2015 at 12:03 PM, Mark Stevens wrote:
> Hi All,
>
> Has anyone seen that something (most likely an alg) on Verizon's LTE/4G
> network is rewriting SIP headers,in particular From Tag identifiers? We
> cannot make a SIP call from our cellphones (using cellular
On 9/22/15 9:03 AM, Mark Stevens wrote:
> Hi All,
>
> Has anyone seen that something (most likely an alg) on Verizon's LTE/4G
> network is rewriting SIP headers,in particular From Tag identifiers? We
> cannot make a SIP call from our cellphones (using cellular data) beyond
> 30 seconds because
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