I'm having trouble configuring a Cisco 1921 router to provide internet access through our Comcast Business modem. I have interface g0/1 connected to the modem as my WAN connection with a ip address of 10.1.10.140. I also have a Netgear router connected to the modem which has an address of 10.1.10.10. The modem has a gateway address of 10.1.10.1. From the console I can ping both 10.1.10.140 and 10.1.10.10 with success. However when I ping the gateway, a timeout occurs with 100% lost packets. The Netgear router however , can ping both the WAN port on the 1921 (10.1.10.140) and the gateway (10.1.10.1) without any problems. Any help would be appreciated. Another note: The current configuration worked fine until we had to swap modems.
Current configuration : 2810 bytes ! ! Last configuration change at 17:54:51 UTC Thu Nov 21 2013 by admin ! NVRAM config last updated at 17:54:51 UTC Thu Nov 21 2013 by admin ! NVRAM config last updated at 17:54:51 UTC Thu Nov 21 2013 by admin version 15.1 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname MTRouterEdge ! boot-start-marker boot-end-marker ! !
! no aaa new-model ! ! no ipv6 cef ip source-route ip cef ! ! ! ! ! ip domain name remote.mtoliveholy.com ! multilink bundle-name authenticated ! crypto pki token default removal timeout 0 ! ! license udi pid CISCO1921/K9 sn FTX1606830L ! !
! redundancy ! ! ! ! ip ssh version 2 ! ! ! bridge irb ! ! ! ! interface Embedded-Service-Engine0/0 no ip address shutdown ! interface GigabitEthernet0/0 description MTOLIVE Network ip address 10.150.99.1 255.255.255.0 ip nat inside ip nat enable ip virtual-reassembly in duplex auto speed auto ! interface GigabitEthernet0/0.1 encapsulation dot1Q 5 ip address 192.168.65.117 255.255.255.128 ip nat inside ip nat enable ip virtual-reassembly in ! interface GigabitEthernet0/0.2 encapsulation dot1Q 3 ip address 10.120.155.126 255.255.255.224 ip nat inside ip virtual-reassembly in ! interface GigabitEthernet0/1 description WAN connection ip address 10.1.10.140 255.255.255.0 ip nat outside ip nat enable ip virtual-reassembly in duplex auto speed auto ! router rip version 2 passive-interface GigabitEthernet0/1 network 10.0.0.0 network 192.168.65.0 no auto-summary ! ip forward-protocol nd ! ip http server ip http authentication local no ip http secure-server ip http timeout-policy idle 600 life 86400 requests 10000 ! ip nat pool ovrld 10.1.10.140 10.1.10.140 prefix-length 24 ip nat inside source list 10 pool ovrld overload ip nat inside source static tcp 10.150.99.40 443 10.1.10.140 443 extendable ip nat inside source static tcp 10.150.99.23 444 10.1.10.140 444 extendable ip nat inside source static tcp 10.150.99.25 512 10.1.10.140 512 extendable ip nat inside source static udp 10.150.99.23 1194 10.1.10.140 1194 extendable ip default-network 10.1.10.0 ip route 0.0.0.0 0.0.0.0 10.1.10.1 ! access-list 10 permit 10.150.99.0 0.0.0.255 access-list 10 permit any ! ! ! ! ! ! control-plane ! ! ! line con 0 exec-timeout 15 0
logging synchronous login line aux 0 line 2 no activation-character no exec transport preferred none transport input all transport output pad telnet rlogin lapb-ta mop udptn v120 ssh stopbits 1 line vty 0 4 privilege level 15
login local transport input telnet ssh ! scheduler allocate 20000 1000 end
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