Cisco 3640 NM-4E Westell ADSL Modem & Ambit Cable Modem/Router Half 1/2 Speed

I have a Cisco 3640 connected to a Westell ADSL Modem and an Ambit Cable Modem/Router. I recently upgrade to 7.0Mb x 768Kb on each. I used to have 3.0Mb x 768K on ADSL and 2.0Mb x 384K on Cable. Both have static IP addresses.

When I connect either modem directly to a PC the speed is fine. This worked before I upgraded and after.

Previously, when I connect the modems to my router through my NM-4E (E2/0 and E2/3) card the speed was fine, I gave up about 15% throughput based upon my configuration. I can live with that.

Currently, after the upgrade to 7.0Mb down, my speed is effectively cut in half. Approximately 2.7 to 2.8 down, up is fine at 720Kb.

I understand that my configuration is restrictive, so I configured my NM-1FE-TX (F0/0) to be bare bones, least restrictive. When I did this my speed improved to almost exactly half.

I have been to Cisco website for hours, Google, here, all to no avail.

Any help would be greatly appreciated.

Below the configuration are my SH Interface and SH IP Interface outputs.

Following is my configuration:

Building configuration...

Current configuration: 6437 bytes ! ! Last configuration change at 09:32:49 PDST Sun Jun 4 2006 by (redacted) ! NVRAM config last updated at 17:30:59 PDST Sat May 27 2006 by (redacted) ! version 12.4 no service pad service tcp-keepalives-in service tcp-keepalives-out service timestamps debug datetime msec localtime show-timezone service timestamps log datetime msec localtime show-timezone service password-encryption service compress-config no service dhcp ! hostname CISCO3640 ! boot-start-marker boot-end-marker ! logging count logging buffered 4096 debugging enable secret (redacted) ! aaa new-model ! ! aaa authentication login default local aaa authorization exec default local ! aaa session-id common ! resource policy ! clock timezone Pacific -8 clock summer-time PDST recurring ip subnet-zero no ip source-route ! ip cef ip domain name (redacted) ip name-server (redacted) ip name-server (redacted) ip name-server (redacted) ip name-server (redacted) no ip dhcp use vrf connected ! no ip bootp server no ip ips deny-action ips-interface ip ips signature 4050 0 disable ip ips name ids-perimeter ip scp server enable ! username (redacted) privilege 15 secret (redacted) ! class-map match-any http-hacks match protocol http url "*default.ida*" match protocol http url "*cmd.exe*" match protocol http url "*root.exe*" match protocol http url "*readme.eml*" ! policy-map drop-inbound-http-hacks class http-hacks police cir 1000000 bc 31250 be 31250 conform-action drop exceed-action drop violate-action drop ! interface Null0 no ip unreachables ! interface FastEthernet0/0 ip address (redacted) test of outside 1&2, not normally used ip access-group 1 in ip access-group 1 out ip nat outside ip virtual-reassembly shutdown duplex auto speed auto ! interface Ethernet2/0 description (redacted) Ambit Cable Modem/Router ip address (redacted) outside1 ip access-group ms-rpc in ip access-group ms-rpc out no ip redirects no ip unreachables no ip proxy-arp ip accounting access-violations ip nat outside ip ips ids-perimeter in ip virtual-reassembly no ip route-cache cef no ip route-cache no ip mroute-cache half-duplex no keepalive no cdp enable service-policy input drop-inbound-http-hacks ! interface Ethernet2/1 ip address dhcp (not used) shutdown full-duplex service-policy input drop-inbound-http-hacks ! interface Ethernet2/2 ip address dhcp (not used) shutdown full-duplex service-policy input drop-inbound-http-hacks ! interface Ethernet2/3 description (redacted) Westell ADSL Modem ip address (redacted) outside2 ip access-group ms-rpc in ip access-group ms-rpc out no ip redirects no ip unreachables no ip proxy-arp ip accounting access-violations ip nat outside ip ips ids-perimeter in ip virtual-reassembly no ip route-cache cef no ip route-cache no ip mroute-cache half-duplex no keepalive no cdp enable service-policy input drop-inbound-http-hacks ! interface FastEthernet3/0 ! interface FastEthernet3/1 ! interface FastEthernet3/2 ! interface FastEthernet3/3 ! interface FastEthernet3/4 ! interface FastEthernet3/5 ! interface FastEthernet3/6 ! interface FastEthernet3/7 ! interface FastEthernet3/8 ! interface FastEthernet3/9 ! interface FastEthernet3/10 ! interface FastEthernet3/11 ! interface FastEthernet3/12 ! interface FastEthernet3/13 ! interface FastEthernet3/14 ! interface FastEthernet3/15 ! interface Vlan1 ip address (redacted) inside1 ip access-group ms-rpc in ip access-group ms-rpc out no ip proxy-arp ip accounting access-violations ip nat inside ip virtual-reassembly ! no ip http server no ip http secure-server ip classless ip route 0.0.0.0 0.0.0.0 (redacted) name (redacted) outside1 ip route 0.0.0.0 0.0.0.0 (redacted) name (redacted) outside2 ! no ip nat create flow-entries ip nat pool (redacted) outside1 (redacted) (redacted) netmask (redacted) ip nat pool (redacted) outside2 (redacted) (redacted) netmask (redacted) ip nat inside source route-map (redacted) outside1 pool (redacted) outside1 overload ip nat inside source route-map (redacted) outside2 pool (redacted) outside2 overload ! ! ip access-list extended ms-rpc deny tcp any any eq 135 deny udp any any eq 135 deny tcp any any eq 137 deny udp any any eq netbios-ns deny tcp any any eq 138 deny udp any any eq netbios-dgm deny tcp any any eq 139 deny udp any any eq netbios-ss deny tcp any any eq 445 deny udp any any eq 445 deny tcp any any eq 593 deny udp any any eq 593 deny tcp any any eq 4444 deny udp any any eq 4444 deny tcp any any eq 4899 deny udp any any eq 4899 permit ip any any ip access-list extended ssh permit ip host (redacted) any log-input permit ip host (redacted) any log-input permit ip host (redacted) any log-input permit ip host (redacted) any log-input deny ip any any log-input logging trap debugging logging source-interface Vlan1 logging (redacted) access-list 1 permit any no cdp run ! route-map (redacted) outside1 permit 10 match interface Ethernet2/0 ! route-map (redacted) outside2 permit 10 match interface Ethernet2/3 ! control-plane ! dial-peer cor custom ! gateway timer receive-rtp 1200 ! line con 0 line aux 0 no exec line vty 0 4 access-class ssh in transport input ssh transport output ssh ! ntp authenticate ntp clock-period 17180450 ntp max-associations 2 ntp server 164.67.62.194 ntp server 131.215.254.2 ! end

CISCO3640#sh ip int e2/0 Ethernet2/0 is up, line protocol is up Internet address is (redacted) outside1 Broadcast address is 255.255.255.255 Address determined by non-volatile memory MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Outgoing access list is ms-rpc Inbound access list is ms-rpc Proxy ARP is disabled Local Proxy ARP is disabled Security level is default Split horizon is enabled ICMP redirects are never sent ICMP unreachables are never sent ICMP mask replies are never sent IP fast switching is disabled IP fast switching on the same interface is disabled IP Flow switching is disabled IP CEF switching is disabled IP Feature Fast switching turbo vector IP multicast fast switching is disabled IP multicast distributed fast switching is disabled IP route-cache flags are No CEF Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is enabled, system threshold is 512 TCP/IP header compression is disabled RTP/IP header compression is disabled Policy routing is disabled Network address translation is enabled, interface in domain outside BGP Policy Mapping is disabled Inbound IPS rule is ids-perimeter CISCO3640#sh int e2/0 Ethernet2/0 is up, line protocol is up Hardware is AmdP2, address is 0008.a397.ace0 (bia 0008.a397.ace0) Description: (redacted) outside1 Internet address is (redacted) outside1 MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not set ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:01, output 00:00:01, output hang never Last clearing of "show interface" counters 02:46:52 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:

0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 32456 packets input, 37838100 bytes, 0 no buffer Received 370 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with dribble condition detected 27244 packets output, 2121511 bytes, 0 underruns 0 output errors, 989 collisions, 1 interface resets 0 babbles, 0 late collision, 857 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out CISCO3640#sh ip int e2/3 Ethernet2/3 is up, line protocol is up Internet address is (redacted) outside2 Broadcast address is 255.255.255.255 Address determined by non-volatile memory MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Outgoing access list is ms-rpc Inbound access list is ms-rpc Proxy ARP is disabled Local Proxy ARP is disabled Security level is default Split horizon is enabled ICMP redirects are never sent ICMP unreachables are never sent ICMP mask replies are never sent IP fast switching is disabled IP fast switching on the same interface is disabled IP Flow switching is disabled IP CEF switching is disabled IP Feature Fast switching turbo vector IP multicast fast switching is disabled IP multicast distributed fast switching is disabled IP route-cache flags are No CEF Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is enabled, system threshold is 512 TCP/IP header compression is disabled RTP/IP header compression is disabled Policy routing is disabled Network address translation is enabled, interface in domain outside BGP Policy Mapping is disabled Inbound IPS rule is ids-perimeter CISCO3640#sh int e2/3 Ethernet2/3 is up, line protocol is up Hardware is AmdP2, address is 0008.a397.ace3 (bia 0008.a397.ace3) Description: (redacted) outside2 Internet address is (redacted) outside2 MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not set ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:07, output 00:00:07, output hang never Last clearing of "show interface" counters 02:47:02 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 16861 packets input, 18324718 bytes, 0 no buffer Received 26 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with dribble condition detected 15685 packets output, 1742706 bytes, 0 underruns 0 output errors, 21 collisions, 4 interface resets 0 babbles, 0 late collision, 243 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out CISCO3640#sh ip int f0/0 FastEthernet0/0 is administratively down, line protocol is down Internet address is (redacted) outside test stripped config Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Outgoing access list is 1 Inbound access list is 1 Proxy ARP is enabled Local Proxy ARP is disabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is disabled IP Flow switching is disabled IP CEF switching is enabled IP CEF Feature Fast switching turbo vector IP multicast fast switching is enabled IP multicast distributed fast switching is disabled IP route-cache flags are Fast, CEF Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled RTP/IP header compression is disabled Policy routing is disabled Network address translation is enabled, interface in domain outside BGP Policy Mapping is disabled CISCO3640#sh int f0/0 FastEthernet0/0 is administratively down, line protocol is down Hardware is AmdFE, address is 0008.a397.acc0 (bia 0008.a397.acc0) Internet address is (redacted) outside test stripped config MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto Speed, 100BaseTX/FX ARP type: ARPA, ARP Timeout 04:00:00 Last input 2d23h, output 2d23h, output hang never Last clearing of "show interface" counters 02:49:45 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out
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