Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread William McCall
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 <

Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread 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

Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread Mark Stevens
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

RE: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread Naslund, Steve
/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

Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread Dovid Bender
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

Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread Mark Stevens
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

Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread Christopher Morrow
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

Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread Jared Mauch
> 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

Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread Mark Stevens
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

Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread Christopher Morrow
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

Re: Verizon Wireless LTE/4G and SIP Header Manipulation

2015-09-22 Thread joel jaeggli
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