I have a Cisco 1720 router with a T1 WIC installed. I'm trying to add an Ethernet WIC to the second WIC slot in order to have another LAN segment on the router. I've installed the WIC card into slot 1 (T1 card is in slot 0 and is working fine) but the card does not show up when I run "show interfaces". I tried swapping the card locations so that the Ethernet WIC is in slot 0 and the T1 WIC is in slot 1 but that didn't work as I lost connectivity with my T1 line. My router version / config is below. I thought I had the right level of software and memory capacity to use the Ethernet WIC in slot 1 with another card in slot 0 but maybe I'm wrong. After installing a WIC, is there anything I need to do to have the new interface recognized or should it just show up after it's installed (assuming it's supported)?
Cisco Internetwork Operating System Software
IOS (tm) C1700 Software (C1700-Y-M), Version 12.2(46a), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Wed 11-Jul-07 19:40 by pwade
Image text-base: 0x800080E0, data-base: 0x8075C4B8
ROM: System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
MPE-LEX-F01 uptime is 1 hour, 59 minutes
System returned to ROM by power-on
System image file is "flash:c1700-y-mz.122-46a.bin"
cisco 1720 (MPC860) processor (revision 0x601) with 36864K/12288K bytes of memor
Processor board ID JAD05340EHN (664022595), with hardware revision 0000
M860 processor: part number 0, mask 32
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102