my guess is similair to guys, I think you might be getting some routing
issue with packets not going optimally between your two carriers.

obviously try tracing and better than that use the ip option for recording
routes. see how the packets are really negotiating the outside.

scott

""Lupi, Guy""  wrote in message
news:[EMAIL PROTECTED]
> Are both of these T1s from the same provider, or is one from Sprint and
one
> from Qwest?  From looking at your NAT pools, and the whois information
> (below), it appears to be one from Sprint and one from Qwest.  I am not
sure
> how the router would make the decision when doing PAT, but it is going to
> pick one of the NAT pools, and then load balance across the T1s (whether
per
> destination or per packet cannot be determined without seeing if CEF is
> turned on and seeing the whole serial interface configurations).
> In this scenario, you would be trying to send some packets out to each
> provider with source IP addresses that are not valid source IPs for that
> network, this may or may not be your problem.  Some portion of your
packets
> may be being dropped by the providers when they see source IP addresses
that
> they did not provide you.  Or, all of your packets are sourced from Qwest,
> since that is the first NAT pool, and you are load sharing outbound, but
all
> return traffic is coming in on the Qwest T1 and using up all your inbound
> bandwidth.  Check to see which one of these is the case, or if neither
> applies, and get back to us.
>
>
> whois -h whois.arin.net 65.120.161.167
> Qwest Communications NET-QWEST-BLKS-4 (NET-65-112-0-0-1)
>                                   65.112.0.0 - 65.127.255.255
> THREE Z PRINTING COMPANY Q1007-65-120-161-160 (NET-65-120-161-160-1)
>                                   65.120.161.160 - 65.120.161.191
>
> # ARIN WHOIS database, last updated 2003-03-11 20:00
> # Enter ? for additional hints on searching ARIN's WHOIS database.
>
> whois -h whois.arin.net 65.160.124.199
> Sprint SPRINTLINK-2-BLKS (NET-65-160-0-0-1)
>                                   65.160.0.0 - 65.174.255.255
> PowerNet Global Communications SPRINTLINK (NET-65-160-124-192-1)
>                                   65.160.124.192 - 65.160.124.223
>
> # ARIN WHOIS database, last updated 2003-03-11 20:00
> # Enter ? for additional hints on searching ARIN's WHOIS database.
>
>
> -----Original Message-----
> From: Terry Oldham [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, March 12, 2003 9:59 AM
> To: [EMAIL PROTECTED]
> Subject: slow wan connection [7:65165]
>
>
> Hello All,
>
>      I recently posted to the newsgroup about configuring a mulitple T1
> connection to a single network. I have since then got the configuration up
> and running however the connection out to the net is very slow. I cannot
> seem to figure out why. Here is the basics of the config:
>
> Fasteth0    ip address 172.16.100.2
>                  ip nat inside
>
> Serial0     ip address 144.x.x.x
>                ip nat outside
>
> Serial1    ip address 65.x.x.x
>               ip nat outside
>
> ip nat pool Qwest 65.120.161.167 65.120.161.190 netmask 255.255.255.224
> ip nat pool Sprint 65.160.124.199 65.160.124.222 netmask 255.255.255.224
> ip nat inside source route-map Qwest1 pool  overload
> ip nat inside source route-map Sprint1 pool  overload
> ip nat inside source static 172.16.100.5 65.120.161.162
> ip nat inside source static 172.16.200.5 65.160.124.194
> ip nat inside source static 172.16.100.6 65.120.161.163
> ip nat inside source static 172.16.200.6 65.160.124.195
> ip nat inside source static 172.16.100.7 65.120.161.164
> ip nat inside source static 172.16.200.7 65.160.124.196
> ip nat inside source static 172.16.100.8 65.120.161.165
> ip nat inside source static 172.16.200.8 65.160.124.197
> ip nat inside source static 172.16.100.9 65.120.161.166
> ip nat inside source static 172.16.200.9 65.160.124.198
> ip classless
> ip route 0.0.0.0 0.0.0.0 65.x.x.x
> ip route 0.0.0.0 0.0.0.0 144.x.x.x
> ip route 65.0.0.0 255.0.0.0 Serial1
> ip route 144.0.0.0 255.0.0.0 Serial0
> ip route 172.0.0.0 255.0.0.0 FastEthernet0
> ip http server
> !
> !
> access-list 10 permit 172.16.100.0 0.0.0.255
> access-list 10 permit 172.16.200.0 0.0.0.255
>
> The Serial interfaces are not showing any kind of problems and packets are
> going out of each of them.
>
> Thanks in advance




Message Posted at:
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