RE: Do we still need Gi Firewall for 3G/UMTS/HSPA network ?

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1

Verizon filters unsolicited inbound traffic for their EVDO customers in my experience.

- S

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Yep verizon does indeed filter all unsolicated inbound traffic to the EVDO network. It can be a blessing or a curse. :slight_smile:

Skywing wrote:

3

Hi Charles/Skywing, is Verizon filter the unsolicated inbound traffic on the firewall or on the border router?

Regards,
Steven Lee

4

That's why you use Teredo - it defeats that sort of simple statefulness, and
works.
((SSH'ed from one laptop (WinXP, using MS's Teredo over double-NATed v4
connection) to another laptop (Ubuntu, EVDO, + Miredo) ... although it was
pretty slow, it fit my needs at the time.))

For a time, maybe still today?, 6to4 would work as well. That is, the
carrier may have been filtering unsolicited TCP/UDP ... but not Protocol41.
(Off the top of my head, I forget which providers fell into which side of
the ItWorked | ItStillWorks camp)

/TJ

From: Charles Wyble [mailto:charles@thewybles.com]
Sent: Thursday, April 09, 2009 6:09 PM
To: Skywing
Cc: NANOG list
Subject: Re: Do we still need Gi Firewall for 3G/UMTS/HSPA network ?

Yep verizon does indeed filter all unsolicated inbound traffic to the EVDO
network. It can be a blessing or a curse. :slight_smile:

Skywing wrote:

Verizon filters unsolicited inbound traffic for their EVDO customers in

my