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Holla wrote: |
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> Hi, |
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> I think I have a routing problem with network |
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> shown below (hope my ascii art survives) |
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> |
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> From PC2, I cannot ping 192.168.1.1 and no internet. |
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> Also cannot ping ISP's DNS servers. But there is full |
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> connectivity between PC1 and PC2. |
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> |
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> At PC2, |
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> # traceroute 192.168.1.1 |
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> traceroute to 192.168.1.1 (192.168.1.1), 30 hops max, 40 byte packets |
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> 1 * * * |
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> 2 * * * |
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> |
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> I reached upto this point by following up the |
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> gentoo howtos, but now stuck. Any pointers ? |
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|
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as someone other said, you should setup NAT, there should be enough |
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information on the wiki, but basically |
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iptabales -t nat -A POSTROUTING -o eth0 -s 192.168.2.0/24 -j MASQUERADE |
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on PC1 should do it, but there might be better ways ;) |
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(note that you need some iptables stuff in the kernel) |
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|
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one other thing, if nat doesn't work, some wireless aps (i'm thinking |
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about the 192.168.2.1) need to have correctly set up default gateway |
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etc... they sometimes try to be to smart and I had sometimes problems |
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when the router was connected as a wireless client to them... |
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|
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btw, why don't you use the wireless on the ROUTER1 (doesn't seem you |
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want to do any firewalling on the PC1)? It might make things much |
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simpler... you could setup the other ap to connect to it in client mode |
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and all your network could then be on the 192.168.1.0/24 and I would |
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gues that your provider NATs the whole subnet... |
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|
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|
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yoyo |
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|
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|
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> |
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> |
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> 192.168.1.1 |
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> +-+ +------------+ |
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> | |-----------| Router1 |=========ASDL conn |
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> | | +------------+ |
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> | | |
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> | | |
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> | | |
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> | | 192.168.1.23 +-------+ 192.168.2.43 |
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> | |------------------| PC1 |----)))............. |
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> +-+ +-------+ . |
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> . |
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> Passive Hub . |
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> 192.168.2.1 . |
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> +------------+ . |
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> | Router2 |--))).. |
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> +------------+ |
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> | |
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> | |
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> +------+ |
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> | PC2 | |
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> +------+ |
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> 192.168.2.24 |
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> |
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> -------------------------------------------------------------- |
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> Router1 (UTSStarCom ISP supplied) : |
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> - router IP 192.168.1.1 |
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> - wireless enabled but not used |
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> |
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> -------------------------------------------------------------- |
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> PC1: (gentoo) |
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> |
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> - eth0 (192.168.1.23) and wireless (192.168.2.43) |
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> - no iptables configuration |
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> - routing table entries |
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> Kernel IP routing table |
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> Destination Gateway Genmask Flags Metric Ref Use Iface |
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> 192.168.2.0 * 255.255.255.0 U 0 0 0 ra0 |
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> 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0 |
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> loopback * 255.0.0.0 U 0 0 0 lo |
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> default 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 |
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> |
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> |
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> # echo "1" > /proc/sys/net/ipv4/ip_forward |
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> |
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> |
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> # Kernel Networking options |
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> # |
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> CONFIG_UNIX=y |
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> CONFIG_XFRM=y |
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> CONFIG_INET=y |
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> CONFIG_IP_ADVANCED_ROUTER=y |
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> CONFIG_ASK_IP_FIB_HASH=y |
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> CONFIG_IP_FIB_HASH=y |
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> CONFIG_IP_ROUTE_VERBOSE=y |
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> CONFIG_INET_XFRM_MODE_TRANSPORT=y |
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> CONFIG_INET_XFRM_MODE_TUNNEL=y |
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> CONFIG_INET_XFRM_MODE_TRANSPORT=y |
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> CONFIG_INET_XFRM_MODE_TUNNEL=y |
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> CONFIG_TCP_CONG_BIC=y |
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> -------------------------------------------------------------- |
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> |
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> Router2 (WRT54GL) |
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> - router IP 192.168.2.1 |
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> - wireless enabled and used |
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> -------------------------------------------------------------- |
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> PC2 (gentoo) |
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> - static IP address 192.168.2.24 |
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> - routing table entries |
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> |
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> Kernel IP routing table |
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> Destination Gateway Genmask Flags Metric Ref Use Iface |
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> 192.168.2.43 * 255.255.255.255 UH 0 0 0 eth0 |
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> 192.168.2.0 * 255.255.255.0 U 0 0 0 eth0 |
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> 192.168.1.0 192.168.2.43 255.255.255.0 UG 0 0 0 eth0 |
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> loopback * 255.0.0.0 U 0 0 0 lo |
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> default 192.168.2.43 0.0.0.0 UG 0 0 0 eth0 |
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|
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|
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-- |
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