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TOPIC: IPSec w/ firewall in middle

IPSec w/ firewall in middle 10 years 3 months ago #27340

  • Ender
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I'm trying to configure two 5505's for IPSec but there's another firewall in the middle. What must I do to the middle firewall, what ports to pass IPSec between my two endpoints?

Re: IPSec w/ firewall in middle 10 years 3 months ago #27342

What kind of firewall are you using?

ZiPPy
ZiPPy

Re: IPSec w/ firewall in middle 10 years 3 months ago #27345

  • Ender
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I believe it's an ASA 5510.

Re: IPSec w/ firewall in middle 10 years 3 months ago #27356

  • tiamat
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for IKE/Isakmp, you'll need UDP500 (or TCP500 is you choose to do IKE over TCP)
if you're using ESP you'll need IP protocol 50
if you're using AH you'll need IP protocol 51
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