«

I brought a new Cisco router 1710 and used it with a PCI broadband
router for Internet access. The file download speed from Internet is
really slow. When I replace the Cisco router with another broadband
router, it is much better.

Workstation 10.10.20.2 configs:
1. ip address: 10.10.20.2 netmask 255.255.255.0
2. default gateway: 10.10.20.1

Cisco router 1710 major configs:
1. ip route 0.0.0.0 0.0.0.0 192.168.0.3
2. interface Fast Ethernet 0: ip address 10.10.20.1 255.255.255.0
ip nat inside
3. interface Ethernet 0: ip address 192.168.0.7 255.255.0.0
ip nat outside
4. access-list 7 permit 10.10.20.0 0.0.0.255
ip nat inside source list 7 interface Ethernet 0 overload

PCI broadband router major configs:
1. interface LAN: ip address 192.168.0.3
2. interface WAN: ip address xxx.xxx.xxx.xxx (ISP assigned)
3. NAT: enabled

Thank you in advance
Regards

On Fri, 26 Dec 2003 21:00:53 -0600, Sam wrote:

> I brought a new Cisco router 1710 and used it with a PCI broadband
> router for Internet access. The file download speed from Internet is
> really slow. When I replace the Cisco router with another broadband
> router, it is much better.
>
> Workstation 10.10.20.2 configs:
> 1. ip address: 10.10.20.2 netmask 255.255.255.0 2. default gateway:
> 10.10.20.1
>
> Cisco router 1710 major configs:
> 1. ip route 0.0.0.0 0.0.0.0 192.168.0.3 2. interface Fast Ethernet 0: ip
> address 10.10.20.1 255.255.255.0
> ip nat inside
> 3. interface Ethernet 0: ip address 192.168.0.7 255.255.0.0
> ip nat outside
> 4. access-list 7 permit 10.10.20.0 0.0.0.255
> ip nat inside source list 7 interface Ethernet 0 overload
>
> PCI broadband router major configs:
> 1. interface LAN: ip address 192.168.0.3 2. interface WAN: ip address
> xxx.xxx.xxx.xxx (ISP assigned) 3. NAT: enabled
>
> Thank you in advance
> Regards


First thing /I/ would do is check "show interface" output for errors.

Are you using pppoe. If so, try "ip tcp adjust-mss 1452" on the interface
that connects to the internet.

"Sam" <> wrote in message
news: om...
> I brought a new Cisco router 1710 and used it with a PCI broadband
> router for Internet access. The file download speed from Internet is
> really slow. When I replace the Cisco router with another broadband
> router, it is much better.
>
> Workstation 10.10.20.2 configs:
> 1. ip address: 10.10.20.2 netmask 255.255.255.0
> 2. default gateway: 10.10.20.1
>
> Cisco router 1710 major configs:
> 1. ip route 0.0.0.0 0.0.0.0 192.168.0.3
> 2. interface Fast Ethernet 0: ip address 10.10.20.1 255.255.255.0
> ip nat inside
> 3. interface Ethernet 0: ip address 192.168.0.7 255.255.0.0
> ip nat outside
> 4. access-list 7 permit 10.10.20.0 0.0.0.255
> ip nat inside source list 7 interface Ethernet 0 overload
>
> PCI broadband router major configs:
> 1. interface LAN: ip address 192.168.0.3
> 2. interface WAN: ip address xxx.xxx.xxx.xxx (ISP assigned)
> 3. NAT: enabled
>
> Thank you in advance
> Regards

Hi PES,

Thank you for your help. I am not using PPPoE. The ISP assigns fixed
IP to my broadband connection. The network diagram looks like:

10.10.2.0/24 <-> Cisco 1710 <-> 192.168.0.0/16 <-> PCI broadband
router <-> Internet

Regards

"PES" <NO*SPAMpestewartREMOVE**SUCK S> wrote in message news:<3fecfd7c$>...
> Are you using pppoe. If so, try "ip tcp adjust-mss 1452" on the interface
> that connects to the internet.
>
> "Sam" <> wrote in message
> news: om...
> > I brought a new Cisco router 1710 and used it with a PCI broadband
> > router for Internet access. The file download speed from Internet is
> > really slow. When I replace the Cisco router with another broadband
> > router, it is much better.
> >
> > Workstation 10.10.20.2 configs:
> > 1. ip address: 10.10.20.2 netmask 255.255.255.0
> > 2. default gateway: 10.10.20.1
> >
> > Cisco router 1710 major configs:
> > 1. ip route 0.0.0.0 0.0.0.0 192.168.0.3
> > 2. interface Fast Ethernet 0: ip address 10.10.20.1 255.255.255.0
> > ip nat inside
> > 3. interface Ethernet 0: ip address 192.168.0.7 255.255.0.0
> > ip nat outside> > Thank you in advance
> > Regards
> > 4. access-list 7 permit 10.10.20.0 0.0.0.255
> > ip nat inside source list 7 interface Ethernet 0 overload
> >
> > PCI broadband router major configs:
> > 1. interface LAN: ip address 192.168.0.3
> > 2. interface WAN: ip address xxx.xxx.xxx.xxx (ISP assigned)
> > 3. NAT: enabled
> >

Hi Rik,

Q1. Thank you for your help. Here are the results. Is it normal to
have so many broadcasts received on Ethernet interface within 30 secs?

samsrt#sh int e0
Ethernet0 is up, line protocol is up
Hardware is PQUICC Ethernet, address is 0005.9a3c.f923 (bia
0005.9a3c.f923)
Internet address is 192.168.0.7/16
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 5/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10BaseT
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:04, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 212000 bits/sec, 4 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
999903 packets input, 366262858 bytes, 0 no buffer
Received 815018 broadcasts, 0 runts, 2 giants, 0 throttles
19270 input errors, 19268 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
693690 packets output, 72720727 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

samsrt#sh int f0
FastEthernet0 is up, line protocol is up
Hardware is PQUICC_FEC, address is 0005.9a3c.f922 (bia
0005.9a3c.f922)
Internet address is 10.10.20.1/24
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:04:00, output 00:00:06, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 1 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
657149 packets input, 68749515 bytes
Received 5317 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
226486 packets output, 268732760 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

***************** After 30 secs ***********************

samsrt# sh int e0
Ethernet0 is up, line protocol is up
Hardware is PQUICC Ethernet, address is 0005.9a3c.f923 (bia
0005.9a3c.f923)
Internet address is 192.168.0.7/16
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 4/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10BaseT
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:01, output 00:00:09, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 189000 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
999925 packets input, 366265202 bytes, 0 no buffer
Received 815040 broadcasts, 0 runts, 2 giants, 0 throttles
19270 input errors, 19268 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
693692 packets output, 72720847 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

samsrt#sh int f0
FastEthernet0 is up, line protocol is up
Hardware is PQUICC_FEC, address is 0005.9a3c.f922 (bia
0005.9a3c.f922)
Internet address is 10.10.20.1/24
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:04:18, output 00:00:02, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 1 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
657149 packets input, 68749515 bytes
Received 5317 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
226489 packets output, 268733302 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out


Q2. There are many strange accesses from 192.168.0.0/16 like this. Is
it caused by worm or virus on the network?

4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.40(13 ->
192.168.255.255(13,
1 packet
4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.1(13 ->
192.168.255.255(13,
1 packet
4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.89(13 ->
192.168.255.255(13,
1 packet
4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.29(13 ->
192.168.255.255(13,
1 packet
4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.89(137) ->
192.168.255.255(137),
1 packet

Thank you
Regards
Sam



Rik Bain <> wrote in message news:<pan.2003.12.26.21.18.49.368525.24925@remove. bainz.org>...
> On Fri, 26 Dec 2003 21:00:53 -0600, Sam wrote:
>
> > I brought a new Cisco router 1710 and used it with a PCI broadband
> > router for Internet access. The file download speed from Internet is
> > really slow. When I replace the Cisco router with another broadband
> > router, it is much better.
> >
> > Workstation 10.10.20.2 configs:
> > 1. ip address: 10.10.20.2 netmask 255.255.255.0 2. default gateway:
> > 10.10.20.1
> >
> > Cisco router 1710 major configs:
> > 1. ip route 0.0.0.0 0.0.0.0 192.168.0.3 2. interface Fast Ethernet 0: ip
> > address 10.10.20.1 255.255.255.0
> > ip nat inside
> > 3. interface Ethernet 0: ip address 192.168.0.7 255.255.0.0
> > ip nat outside
> > 4. access-list 7 permit 10.10.20.0 0.0.0.255
> > ip nat inside source list 7 interface Ethernet 0 overload
> >
> > PCI broadband router major configs:
> > 1. interface LAN: ip address 192.168.0.3 2. interface WAN: ip address
> > xxx.xxx.xxx.xxx (ISP assigned) 3. NAT: enabled
> >
> > Thank you in advance
> > Regards
>
>
> First thing /I/ would do is check "show interface" output for errors.

On Sat, 27 Dec 2003 06:52:06 -0600, Sam wrote:


inline

> Hi Rik,
>
> Q1. Thank you for your help. Here are the results. Is it normal to have
> so many broadcasts received on Ethernet interface within 30 secs?
>

i wouldnt worry about that.

> ***************** After 30 secs ***********************
>
> samsrt# sh int e0
> Ethernet0 is up, line protocol is up
> Hardware is PQUICC Ethernet, address is 0005.9a3c.f923 (bia
> 0005.9a3c.f923)
> Internet address is 192.168.0.7/16
> MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
> reliability 255/255, txload 1/255, rxload 4/255
> Encapsulation ARPA, loopback not set
> Keepalive set (10 sec)
> Full-duplex, 10BaseT
> ARP type: ARPA, ARP Timeout 04:00:00
> Last input 00:00:01, output 00:00:09, output hang never Last clearing
> of "show interface" counters never Queueing strategy: fifo Output
> queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate
> 189000 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0
> packets/sec
> 999925 packets input, 366265202 bytes, 0 no buffer Received 815040
> broadcasts, 0 runts, 2 giants, 0 throttles 19270 input errors,
> 19268 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with
> dribble condition detected 693692 packets output, 72720847 bytes, 0
> underruns 0 output errors, 0 collisions, 2 interface resets 0
> babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier
> 0 output buffer failures, 0 output buffers swapped out
>
>

I would be willing to bet that "19270 input errors,
19268 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with" is
your performance problem. check speed/duplex or any other ethernet
troubleshooting steps that you employ.



>
> Q2. There are many strange accesses from 192.168.0.0/16 like this. Is it
> caused by worm or virus on the network?
>

depends on frequency, you could enable timestamps to determine. but most
likely, it is regular windows traffic, since the other router doesnt
suffer performance related issues.


> 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.40(13 ->
> 192.168.255.255(13,
> 1 packet
> 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.1(13 ->
> 192.168.255.255(13,
> 1 packet
> 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.89(13 ->
> 192.168.255.255(13,
> 1 packet
> 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.29(13 ->
> 192.168.255.255(13,
> 1 packet
> 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.89(137) ->
> 192.168.255.255(137),
> 1 packet
>
> Thank you
> Regards
> Sam
>
>

Dear Rik,

Thank you for you help.
Would you please explain more on troubleshooting CRC errors and
speed/duplex? Do I need to match the speed/duplex between router
interface and switch port, or between the two router interfaces? Sorry
for I am a beginner in networking.

Thank you in advance
Regards
Sam


Rik Bain <> wrote in message news:< ainz.org>...
> On Sat, 27 Dec 2003 06:52:06 -0600, Sam wrote:
>
>
> inline
>
> > Hi Rik,
> >
> > Q1. Thank you for your help. Here are the results. Is it normal to have
> > so many broadcasts received on Ethernet interface within 30 secs?
> >
>
> i wouldnt worry about that.
>
> > ***************** After 30 secs ***********************
> >
> > samsrt# sh int e0
> > Ethernet0 is up, line protocol is up
> > Hardware is PQUICC Ethernet, address is 0005.9a3c.f923 (bia
> > 0005.9a3c.f923)
> > Internet address is 192.168.0.7/16
> > MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
> > reliability 255/255, txload 1/255, rxload 4/255
> > Encapsulation ARPA, loopback not set
> > Keepalive set (10 sec)
> > Full-duplex, 10BaseT
> > ARP type: ARPA, ARP Timeout 04:00:00
> > Last input 00:00:01, output 00:00:09, output hang never Last clearing
> > of "show interface" counters never Queueing strategy: fifo Output
> > queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate
> > 189000 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0
> > packets/sec
> > 999925 packets input, 366265202 bytes, 0 no buffer Received 815040
> > broadcasts, 0 runts, 2 giants, 0 throttles 19270 input errors,
> > 19268 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with
> > dribble condition detected 693692 packets output, 72720847 bytes, 0
> > underruns 0 output errors, 0 collisions, 2 interface resets 0
> > babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier
> > 0 output buffer failures, 0 output buffers swapped out
> >
> >
>
> I would be willing to bet that "19270 input errors,
> 19268 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with" is
> your performance problem. check speed/duplex or any other ethernet
> troubleshooting steps that you employ.
>
>
>
> >
> > Q2. There are many strange accesses from 192.168.0.0/16 like this. Is it
> > caused by worm or virus on the network?
> >
>
> depends on frequency, you could enable timestamps to determine. but most
> likely, it is regular windows traffic, since the other router doesnt
> suffer performance related issues.
>
>
> > 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.40(13 ->
> > 192.168.255.255(13,
> > 1 packet
> > 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.1(13 ->
> > 192.168.255.255(13,
> > 1 packet
> > 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.89(13 ->
> > 192.168.255.255(13,
> > 1 packet
> > 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.29(13 ->
> > 192.168.255.255(13,
> > 1 packet
> > 4d03h: %SEC-6-IPACCESSLOGP: list 101 denied udp 192.168.3.89(137) ->
> > 192.168.255.255(137),
> > 1 packet
> >
> > Thank you
> > Regards
> > Sam
> >
> >