I have a network connected via T1 and I'm having trouble sending emails over 50kb in size. It doesn't matter what SMTP server I use or from what computer on the network...every message with an attachment times out. SBC (the ISP) swears they're not blocking any ports including 25 and they say it's an internal problem. I can connect to any SMTP server using telnet and I get a reply. There's no firewall and the only thing I can think that it would be is the Cisco 2600 router at the gateway. Is there any chance that it's blocking large emails?
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Newbie Question: Cisco 2600 Blocking Large Emails
- Thread starter cmsim
- Start date
- Thread starter
- #3
Forgive my newbieness...I'm not completely sure how to get the config, but I typed the command "sh config" and this is what came up. I doctored the output up (passwords and IPs) for obvious reasons.
Using 1095 out of 29688 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname xxxxx
!
enable secret 5 xxxx/
enable password xxxx
!
!
!
!
!
ip subnet-zero
!
!
!
!
interface Ethernet0/0
ip address 192.168.2.1 255.255.255.0
ip nat inside
no ip mroute-cache
no cdp enable
!
interface Serial0/0
ip address 151.164.xx.xxx 255.255.255.252
ip nat outside
no ip mroute-cache
!
interface Serial0/1
ip address 192.168.3.1 255.255.255.252
encapsulation ppp
!
ip nat inside source list 101 interface Serial0/0 overload
ip classless
ip route 0.0.0.0 0.0.0.0 151.164.xx.xxx
ip route 192.168.1.0 255.255.255.0 192.168.3.2
no ip http server
!
access-list 101 deny ip 192.168.2.0 0.0.0.255 192.168.1.0 0.0.0.255
access-list 101 deny ip 192.168.2.0 0.0.0.255 192.168.3.0 0.0.0.255
access-list 101 permit ip 192.168.2.0 0.0.0.255 any
snmp-server engineID local 00000009010000A1C0A80101
snmp-server community public RO
!
line con 0
transport input none
line aux 0
line vty 0 4
password xxxx
login
!
no scheduler allocate
end
I hope this helps...thanks.
Using 1095 out of 29688 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname xxxxx
!
enable secret 5 xxxx/
enable password xxxx
!
!
!
!
!
ip subnet-zero
!
!
!
!
interface Ethernet0/0
ip address 192.168.2.1 255.255.255.0
ip nat inside
no ip mroute-cache
no cdp enable
!
interface Serial0/0
ip address 151.164.xx.xxx 255.255.255.252
ip nat outside
no ip mroute-cache
!
interface Serial0/1
ip address 192.168.3.1 255.255.255.252
encapsulation ppp
!
ip nat inside source list 101 interface Serial0/0 overload
ip classless
ip route 0.0.0.0 0.0.0.0 151.164.xx.xxx
ip route 192.168.1.0 255.255.255.0 192.168.3.2
no ip http server
!
access-list 101 deny ip 192.168.2.0 0.0.0.255 192.168.1.0 0.0.0.255
access-list 101 deny ip 192.168.2.0 0.0.0.255 192.168.3.0 0.0.0.255
access-list 101 permit ip 192.168.2.0 0.0.0.255 any
snmp-server engineID local 00000009010000A1C0A80101
snmp-server community public RO
!
line con 0
transport input none
line aux 0
line vty 0 4
password xxxx
login
!
no scheduler allocate
end
I hope this helps...thanks.
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