Low Memory on Cisco 837 Router

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Guest

Low Memory on Cisco 837 Router

Post by Guest » Mon Mar 16, 2009 9:43 pm

hi experts, i have a cisco 837 router and having this syslog: *Mar 1 01:39:10.615: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for ipnat entry. No memory available i tried to do a show run but can only a show start can view the routers config. ive search in cisco.coms website and this is due to routers lack of memory. i also did a show ip nat translations and theres a huge NAT translation output. would like to know if i theres a config that can help resolve save memory on doing NAT or should i just replace this router with a big memory.

Guest

Re:Low Memory on Cisco 837 Router

Post by Guest » Mon Mar 16, 2009 10:19 pm

johnlloyd_13 wrote: hi experts, i have a cisco 837 router and having this syslog: *Mar 1 01:39:10.615: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for ipnat entry. No memory available i tried to do a show run but can only a show start can view the routers config. ive search in cisco.coms website and this is due to routers lack of memory. i also did a show ip nat translations and theres a huge NAT translation output. would like to know if i theres a config that can help resolve save memory on doing NAT or should i just replace this router with a big memory. John If the NAT translations are dynamic it might be worth shortening the timeout so that they are freed up more quickly but to be honest unless the timeout is way too long you might well be looking at a more capable router. Having said that you need to make sure that the translations are valid ie. you do not have an infected host(s) on your LAN that are trying to create many connections back out through the router. Jon

Guest

Re:Low Memory on Cisco 837 Router

Post by Guest » Mon Mar 16, 2009 10:25 pm

hi jon, thank you for your response. yes, weve implemented dynamic NAT on this router. would like to know the command you
e referring to shorten the NAT timeout on the routers cache. or what router model can you recommend that is capable on handling this?

Hosam

Re: Low Memory on Cisco 837 Router

Post by Hosam » Mon Jul 23, 2018 4:53 am

Hi Guys, I got the same error any advise
Thanks

john
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Re: Low Memory on Cisco 837 Router

Post by john » Sun Jul 29, 2018 4:02 pm

How much RAM is in your router? Also, do you have an approximate amount of concurrent connections?

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