Solved: Issues with Avaya IP phones & PIX 515

b1ackb1rd · ‎03-03-2005

I have a setup where an Avaya MedPro/CLAN is connected to DMZ with Avaya IP phones on the inside LAN, even with H323/225/323RAS fixup’s enabled and a access rule from DMZ to inside the IP phones don’t get registered. When IP is enabled from MedPro/CLAN to inside the phones start working.

The PIX OS I have is 6.3(1), what is going on here? Any insight would be much appreciated.

Thanks.

kleo · ‎03-13-2005

Disable any h.323 fixup, it doesn't work with the avaya gatekeeper "clan"

no fixup protocol h323 h225 1720

no fixup protocol h323 ras 1718-1719

then ensure

your static (inside,dmz) is setup correctly and any ACLs have tcp 1719/1720 open

Also, open udp port range that match your avaya server configuration "network region".

View solution in original post

umedryk · ‎03-10-2005

You need to disable the per-user based authentication if you have a concetrator in between.

b1ackb1rd · ‎03-13-2005

Thank you very much for your reply... but I do not have authentication configured.

kleo · ‎03-13-2005

Disable any h.323 fixup, it doesn't work with the avaya gatekeeper "clan"

no fixup protocol h323 h225 1720

no fixup protocol h323 ras 1718-1719

then ensure

your static (inside,dmz) is setup correctly and any ACLs have tcp 1719/1720 open

Also, open udp port range that match your avaya server configuration "network region".

b1ackb1rd · ‎03-20-2005

Ok finally the issue is resolved... here's what was done. The firmware on the IP phones were updated to the latest version & following rules were applied on the firewall. Please note that the fixup was NOT disabled in this instance...

From TCP/UDP To TCP/UDP

CLAN udp/1719 Any udp/Any

Any udp/any CLAN udp/1719

CLAN tcp/1720 Any tcp/any

Any tcp/any CLAN tcp/1720

MedPro udp/2048-3028 Any udp/any

Any udp/any MedPro udp/2048-3028

Any IP Phone udp/any DNS server udp/53

Any IP Phone udp/68 (bootpc) DHCP server udp/67 (bootps)

DHCP server udp/67 (bootps) Any IP Phone udp/68 (bootpc)

Any Avaya device ICMP echo Any

Any ICMP echo reply Any Avaya device

For the remote LSP these are the rules:

Ent. Interface tcp/any LSP tcp/514

LSP tcp/514 Ent. Interface tcp/any

LSP tcp/any Ent. Interface tcp/512-1023

Ent. Interface tcp/512-1023 LSP tcp/any

Everything works great now.. thanks for all the help

Cheers.

kleo · ‎03-21-2005

cool, it works, but what i don't see is the h.248 signaling ports for the gateway(g700) with LSP.

Encrypted H.248 is TCP/1039

Unencrypted h.248 is TCP/2945

Also an FYI if

Both primary and LSP running Avaya CM2.x or higher

TCP 514-1023 no longer needed use just TCP 21873 for file synchronization.